• Firmware update?

    From Edward Rawde@invalid@invalid.invalid to sci.electronics.design on Mon Aug 10 22:08:38 2026
    From Newsgroup: sci.electronics.design

    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Mon Aug 10 19:36:51 2026
    From Newsgroup: sci.electronics.design

    On 8/10/2026 7:08 PM, Edward Rawde wrote:
    https://www.bbc.com/news/articles/c4gwl3n7ne7o
    "Sensitive data" need not be transmitted to expose a vulnerability!
    The "far end" now knows the device is "live"/deployed and (likely)
    some general idea of WHERE.

    For big systems, it's nigh on impossible to assure yourself that there
    isn't something hiding inside that "isn't needed" (and can potentially
    be working against your intentions).

    This, increasingly, as more folks blindly embrace FOSS codebases
    in the naive belief that all of the "contributors" were benevolent
    souls.

    <https://www.faegredrinker.com/en/insights/publications/2022/3/open-source-vulnerabilities-the-newest-vector-of-attack>

    <https://www.reversinglabs.com/blog/the-changing-face-of-open-source-security>

    <https://www.yeswehack.com/news/chocopocs-vulnerability-researchers-trojanised-exploits>

    The laughable assumption that "lots of eyes" will see and detect these sorts
    of things shows just how naive adopters are. And, no, NO ONE on your team
    has a grasp of all the code you're leveraging!
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  • From Jan Panteltje@alien@comet.invalid to sci.electronics.design on Tue Aug 11 07:01:45 2026
    From Newsgroup: sci.electronics.design

    "Edward Rawde" <invalid@invalid.invalid>wrote: >>https://www.bbc.com/news/articles/c4gwl3n7ne7o


    Nice, makes tracking and hitting easier.

    I have a lot of Chinese stuff at home,
    from satellite receiver boxes to speakers,
    to my 4G Huawei USB modems,
    to drones,
    and all sort of chips and toys,
    OLED displays, LCD displays
    much more.

    All works great and is cheap.
    China likely now knows everything about me now :-)
    Ah, forgot Bluetooth stuff

    Oops and wall warts of all sorts.
    Solar powered flashlight..
    Just when I look around, Chinese stuff everywhere,
    And not just China, other countries stuff too.

    US stuff? no...
    Oops using a Logitech keyboard and mouse
    Logitech - Wikipedia
    Logitech International S.A. (/ -el+Ad-A+-t+ck / LOJ-i-tek) is a Swiss multinational manufacturer of computer peripherals and software.
    Headquartered in Lausanne, Switzerland, [1] with an important operational headquarters in San Jose, California, [3][4][5]
    the company has offices throughout Europe, Asia, Oceania, and the Americas. It

    So some in 'merrica, it is a wireless keyboard, maybe it sends all I type to trump?

    Does the US and UK use wireless keyboards?
    ;-)

    Will have to encrypt ;fjmkws;a fs;'[k fs'fwef pwp3q2r4f'f 'wpflg

    beep!






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  • From Edward Rawde@invalid@invalid.invalid to sci.electronics.design on Tue Aug 11 14:04:35 2026
    From Newsgroup: sci.electronics.design

    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115e1s5$3kp2t$1@dont-email.me...
    On 8/10/2026 7:08 PM, Edward Rawde wrote:
    https://www.bbc.com/news/articles/c4gwl3n7ne7o
    "Sensitive data" need not be transmitted to expose a vulnerability!
    The "far end" now knows the device is "live"/deployed and (likely)
    some general idea of WHERE.

    For big systems, it's nigh on impossible to assure yourself that there
    isn't something hiding inside that "isn't needed" (and can potentially
    be working against your intentions).

    This, increasingly, as more folks blindly embrace FOSS codebases
    in the naive belief that all of the "contributors" were benevolent
    souls.

    Yes it's no longer possible to know what's potentially in most software,
    due to contributions coming from many places.
    Back when I used to write a few KB of code for something like a 68020
    I knew exactly what was in it.
    These days I'd probably have to start with a FOSS OS and other
    FOSS libraries.

    AI is likely to become an issue here too.
    If you use a lot of code generated by AI then how do you know
    that there isn't anything unwanted hiding in it?


    <https://www.faegredrinker.com/en/insights/publications/2022/3/open-source-vulnerabilities-the-newest-vector-of-attack>

    <https://www.reversinglabs.com/blog/the-changing-face-of-open-source-security>

    <https://www.yeswehack.com/news/chocopocs-vulnerability-researchers-trojanised-exploits>

    The laughable assumption that "lots of eyes" will see and detect these sorts of things shows just how naive adopters are. And, no, NO ONE on your team has a grasp of all the code you're leveraging!


    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Tue Aug 11 12:31:43 2026
    From Newsgroup: sci.electronics.design

    On 8/11/2026 11:04 AM, Edward Rawde wrote:
    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115e1s5$3kp2t$1@dont-email.me...
    On 8/10/2026 7:08 PM, Edward Rawde wrote:
    https://www.bbc.com/news/articles/c4gwl3n7ne7o
    "Sensitive data" need not be transmitted to expose a vulnerability!
    The "far end" now knows the device is "live"/deployed and (likely)
    some general idea of WHERE.

    For big systems, it's nigh on impossible to assure yourself that there
    isn't something hiding inside that "isn't needed" (and can potentially
    be working against your intentions).

    This, increasingly, as more folks blindly embrace FOSS codebases
    in the naive belief that all of the "contributors" were benevolent
    souls.

    Yes it's no longer possible to know what's potentially in most software,
    due to contributions coming from many places.

    "Contributions", in the past, came from coworkers or *purchased*
    components. People that have a reputation to protect.

    FOSS comes from faceless names with unknown motivations.

    Back when I used to write a few KB of code for something like a 68020
    I knew exactly what was in it.
    These days I'd probably have to start with a FOSS OS and other
    FOSS libraries.

    Much depends on the scale of the problem you are addressing,
    it's potential "exposure", value added (i.e., at risk) and
    expected lifetime.

    If you are planing on developing a product/product line, then it behooves
    you to invest in YOUR codebase instead of inheriting a codebase that you
    likely will never take the time to analyze, critique, validate, etc.
    Yet, *yours* will be the reputation at stake when/if things go south
    in ways that you've not accommodated.

    [I started writing all of my own libraries instead of relying on those delivered with the toolchain (more than once encountering bugs in those
    "closed source" libraries). This has allowed me to customize those
    libraries to add value to guard against conditions that could arise from
    their (mis)use -- issues that the COTS developers gloss over.]

    AI is likely to become an issue here too.
    If you use a lot of code generated by AI then how do you know
    that there isn't anything unwanted hiding in it?
    AI cribs from code that it has seen. Folks complain "software is buggy".
    So, software copied from other software is magically *better*?? And,
    wait until AI-generated code starts training OTHER AI's... :-/
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From brian@nospam@b-howie.co.uk to sci.electronics.design on Wed Aug 12 09:12:41 2026
    From Newsgroup: sci.electronics.design

    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward
    Rawde <invalid@invalid.invalid> writes >https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment"
    of the drones, the cameras were found to have sent a squark rCo also
    known as a heartbeat communication rCo to a Chinese IP address. "


    Imagine my astonishment when I found my pings don't get out if I'm
    off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    Brian
    --
    Brian Howie
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 02:47:19 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 1:12 AM, brian wrote:
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward Rawde <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment" of the
    drones, the cameras were found to have sent a squark rCo also known as a heartbeat communication rCo to a Chinese IP address. "


    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet
    Whether any "successful" communication actually took place isn't the point. Rather, the origins of some part of the weapon system are now of concern.
    What *else* will it do (or not do)?
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Edward Rawde@invalid@invalid.invalid to sci.electronics.design on Wed Aug 12 13:03:41 2026
    From Newsgroup: sci.electronics.design

    "brian" <nospam@b-howie.co.uk> wrote in message news:wBOpKpj5rCfqFwsP@b-howie.co.uk...
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward Rawde <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment" of the drones, the cameras were found to have sent a
    squark - also known as a heartbeat communication - to a Chinese IP address. "


    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.


    Brian
    --
    Brian Howie


    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 12:11:48 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 10:03 AM, Edward Rawde wrote:
    "brian" <nospam@b-howie.co.uk> wrote in message news:wBOpKpj5rCfqFwsP@b-howie.co.uk...
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward Rawde <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment" of the drones, the cameras were found to have sent a
    squark - also known as a heartbeat communication - to a Chinese IP address. "


    Imagine my astonishment when I found my pings don't get out if I'm off-line. >>
    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    A camera can selectively decide NOT to see certain things, based
    on features in the image. You won't know about that until
    you try to see something and wonder why what the camera reports is
    not what your own eyes see.

    You'd likely never know about:
    <https://en.wikipedia.org/wiki/EURion_constellation>
    until you made an attempt to do what it is designed to prevent!
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Edward Rawde@invalid@invalid.invalid to sci.electronics.design on Wed Aug 12 18:16:12 2026
    From Newsgroup: sci.electronics.design

    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115ighn$12h1t$1@dont-email.me...
    On 8/12/2026 10:03 AM, Edward Rawde wrote:
    "brian" <nospam@b-howie.co.uk> wrote in message news:wBOpKpj5rCfqFwsP@b-howie.co.uk...
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward Rawde <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment" of the drones, the cameras were found to have sent a
    squark - also known as a heartbeat communication - to a Chinese IP address. "


    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.


    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.


    A camera can selectively decide NOT to see certain things, based
    on features in the image. You won't know about that until
    you try to see something and wonder why what the camera reports is
    not what your own eyes see.

    You'd likely never know about:
    <https://en.wikipedia.org/wiki/EURion_constellation>
    until you made an attempt to do what it is designed to prevent!

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?


    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 15:39:55 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    A camera can selectively decide NOT to see certain things, based
    on features in the image. You won't know about that until
    you try to see something and wonder why what the camera reports is
    not what your own eyes see.

    You'd likely never know about:
    <https://en.wikipedia.org/wiki/EURion_constellation>
    until you made an attempt to do what it is designed to prevent!

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content BACK to you (really???)

    When I had to develop the user location tracking software for my product, cameras would have been the easy approach. All the user would have to
    do is "exist" and I could determine his location and movements!

    But, I felt people would be uncomfortable with cameras in every (EVERY)
    room in their "personal residence" (or business, etc.) wondering what
    was being seen, recorded, etc.

    To ensure NOTHING leaves their control, I don't support an out-facing
    interface (unlike all of these other IoT devices that want to "talk to
    Mama" instead of doing the job themselves). There's no need for
    some other "foreign" device(s) to be involved in its operation.

    <http://shodan.io>
    <https://exposure.shodan.io/#/US>

    Gotta wonder where YOUR devices are in those totals! :>
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Edward Rawde@invalid@invalid.invalid to sci.electronics.design on Wed Aug 12 21:25:10 2026
    From Newsgroup: sci.electronics.design

    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115isnt$16fv4$1@dont-email.me...
    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    Sure. You can tunnel any protocol over any other protocol if
    you want to wait long enough due to inefficiency.


    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    The bogus web site would be at an unknown and hence blocked IP.
    I wouldn't believe anything DNS says.


    A camera can selectively decide NOT to see certain things, based
    on features in the image. You won't know about that until
    you try to see something and wonder why what the camera reports is
    not what your own eyes see.

    You'd likely never know about:
    <https://en.wikipedia.org/wiki/EURion_constellation>
    until you made an attempt to do what it is designed to prevent!

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain.


    When I had to develop the user location tracking software for my product, cameras would have been the easy approach. All the user would have to
    do is "exist" and I could determine his location and movements!

    But, I felt people would be uncomfortable with cameras in every (EVERY)
    room in their "personal residence" (or business, etc.) wondering what
    was being seen, recorded, etc.

    To ensure NOTHING leaves their control, I don't support an out-facing interface (unlike all of these other IoT devices that want to "talk to
    Mama" instead of doing the job themselves). There's no need for
    some other "foreign" device(s) to be involved in its operation.

    <http://shodan.io>


    Gotta wonder where YOUR devices are in those totals! :>

    Shodan have to be one of the few with consistent reverse DNS names
    so you know who it is.


    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 19:06:08 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 6:25 PM, Edward Rawde wrote:
    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115isnt$16fv4$1@dont-email.me...
    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    Sure. You can tunnel any protocol over any other protocol if
    you want to wait long enough due to inefficiency.

    It depends what your goals are. If you already have a payload
    installed and are just waiting to *activate* it...

    Or, if you want to know how many (unique) instances of a
    particular product exist... Or, that it has been deployed...

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    The bogus web site would be at an unknown and hence blocked IP.
    I wouldn't believe anything DNS says.

    Again, depends on the environment. An *employer* likely
    wouldn't know to block that domain as their employees
    may opt to resolve a HUGE variety of different names
    as they "surf the web", etc. Note how many domains
    are visited by the "mainstream" sites that YOU visit.

    One can contract with a firm to determine and maintain a list of
    blocked domains (our local library does just that) but, that is
    an ongoing effort -- hence the cost involved in retaining
    that service. And, chances are, they're efforts will still
    have holes that defy their intended blocking criteria. E.g.,
    I may be blocked from a particular site -- yet, can access
    a copy of the site from archive.org. Or, can access a mirror
    that I might know about but they have yet to discover.

    If you take the opposite approach -- of whitelisting ONLY those
    permitted sites -- then you find yourself always on the receiving
    end of complaints from folks with legitimate needs that you've
    effectively blocked out of ignorance.

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content
    BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain.

    There is the belief that "there is no privacy" -- which is self-fulfilling,
    if you LET it be.

    Eventually, there will be an "incident" and people will be outraged with how exposed they have become. That *may* lead to legislation that coerces folks to AVOID accessing material/data that is protected thusly (to reduce their
    legal exposure and financial liability).
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Sergey Kubushyn@ksi@koi8.net to sci.electronics.design on Thu Aug 13 04:16:18 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 6:25 PM, Edward Rawde wrote:
    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115isnt$16fv4$1@dont-email.me...
    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to.
    And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    Sure. You can tunnel any protocol over any other protocol if
    you want to wait long enough due to inefficiency.

    It depends what your goals are. If you already have a payload
    installed and are just waiting to *activate* it...

    Or, if you want to know how many (unique) instances of a
    particular product exist... Or, that it has been deployed...

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    The bogus web site would be at an unknown and hence blocked IP.
    I wouldn't believe anything DNS says.

    Again, depends on the environment. An *employer* likely
    wouldn't know to block that domain as their employees
    may opt to resolve a HUGE variety of different names
    as they "surf the web", etc. Note how many domains
    are visited by the "mainstream" sites that YOU visit.

    One can contract with a firm to determine and maintain a list of
    blocked domains (our local library does just that) but, that is
    an ongoing effort -- hence the cost involved in retaining
    that service. And, chances are, they're efforts will still
    have holes that defy their intended blocking criteria. E.g.,
    I may be blocked from a particular site -- yet, can access
    a copy of the site from archive.org. Or, can access a mirror
    that I might know about but they have yet to discover.

    If you take the opposite approach -- of whitelisting ONLY those
    permitted sites -- then you find yourself always on the receiving
    end of complaints from folks with legitimate needs that you've
    effectively blocked out of ignorance.

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content
    BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain.

    There is the belief that "there is no privacy" -- which is self-fulfilling, if you LET it be.

    Eventually, there will be an "incident" and people will be outraged with how exposed they have become. That *may* lead to legislation that coerces folks to
    AVOID accessing material/data that is protected thusly (to reduce their
    legal exposure and financial liability).

    Here is the solution for security cameras (I have 16 of those inside and outside my house) -- only use WIRED PoE cameras on their own subnet without
    ANY Internet access. Do NOT use ANYTHING that requires access to some mama servers (99.99% of which are in China) for anything. ALL those mamas not
    just require Internet access but also require a port mapping on your router/firewall to their DVR with a login to it. This way you grant access
    into your internal network with their trojan horse and can only blame
    yourself for all the consequences.

    They all have a pretty valid excuse for putting a trojan horse into your
    house even if that horse is 100% benign (one would be a total moron to
    believe that) and their intentions are 100% innocent (see about morons). The excuse is simple -- most of the home Internet external IPs are dynamic and
    vast majority of those are from 10.x.x.x range so they are not just unknown
    but also not routable beyond the provider's router. The only way to show you video feeds from your cameras on your moronophone is to let your DVR connect
    to their server and establish a tunnel giving them full control over your entire infrasystem. Without that you won't be able to control your cameras
    and DVR from your moronophone. As an added "bonus" you can store your
    footage in their cloud so it would be "safe".

    Everybody with a trace of brain would NOT allow that. Those without brains shouldn't complain about privacy and whatever else.

    Do NOT use any moronophones and those totally unknown apps. It might look convenient, but it is no different from leaving all your doors and windows
    wide open without any locks or whatever. And they don't even have to look
    for excuses to bring a trojan horse into your house -- it is simply
    impossible to do it without that horse for 99.9999% of all households here
    in the US. The total amount of intellect on the planet is constant and population keeps growing without an end in sight...


    There is no way it could be fixed by a legislation -- it is simply
    impossible to get it to the people's moronophones differently with the
    existing home Internet infrastructure.

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 22:09:32 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 9:16 PM, Sergey Kubushyn wrote:
    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content
    BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain.

    There is the belief that "there is no privacy" -- which is self-fulfilling, >> if you LET it be.

    Eventually, there will be an "incident" and people will be outraged with how >> exposed they have become. That *may* lead to legislation that coerces folks to
    AVOID accessing material/data that is protected thusly (to reduce their
    legal exposure and financial liability).

    Here is the solution for security cameras (I have 16 of those inside and outside my house) -- only use WIRED PoE cameras on their own subnet without ANY Internet access. Do NOT use ANYTHING that requires access to some mama servers (99.99% of which are in China) for anything. ALL those mamas not
    just require Internet access but also require a port mapping on your router/firewall to their DVR with a login to it. This way you grant access into your internal network with their trojan horse and can only blame yourself for all the consequences.

    The argument for access to their server is:
    - they can add functionality at the server (instead of putting it into
    the actual device)
    - they can provide a registered domain that one can access from
    "outside" the home

    The first is laughable, given the amount of smarts many of these devices
    have "at the edge"; the only advantage a remote server could offer is
    to augment information that might not be available "locally" (e.g., a
    smart thermostat being able to adapt to current weather conditions
    AND FUTURE WEATHER PREDICTIONS)

    The second can be accomplished with a DDNS service. Admittedly, this
    is more involved than having something automagically in place. But,
    you may not really care about remote "on demand" access; have the
    camera email you anything of interest and you can view the email
    (and attachment) using existing software (on your phone, laptop,
    company workstation, etc.)

    I "solve" this problem with different pipes out of the house for
    different purposes.

    E.g., if in the car (which I consider to be an extension of the house),
    AND nearby, then the wifi link to the node I've located in the car lets
    it act like any other node in the house. E.g., I could use it to
    remove commercials from recorded TV shows. Or, display the contents
    of the garage to explain why the garage door is refusing to honor
    the request to open (the dog happens to be in the garage).

    Beyond the WiFi range, a cordless phone gives me a narrower pipe
    that is good to ~1 mile range. So, if I forgot to close the garage
    door, I can be notified of that and prompted as to whether it
    should be done FOR me. Or, if approaching the house, I can
    determine if I've been advised to park in the driveway due
    to a guest vehicle being in the garage (and needing to be
    able to get out without worrying that I've parked behind them)

    Beyond that, the cell phone gives me limitless range but with
    restrictions on bandwidth and latency (I may be at a landline
    and only have voice available).

    But, this is an exception. Most consumers are stuck with whatever
    their phone will offer.

    They all have a pretty valid excuse for putting a trojan horse into your house even if that horse is 100% benign (one would be a total moron to believe that) and their intentions are 100% innocent (see about morons). The excuse is simple -- most of the home Internet external IPs are dynamic and vast majority of those are from 10.x.x.x range so they are not just unknown but also not routable beyond the provider's router. The only way to show you video feeds from your cameras on your moronophone is to let your DVR connect to their server and establish a tunnel giving them full control over your entire infrasystem. Without that you won't be able to control your cameras and DVR from your moronophone. As an added "bonus" you can store your
    footage in their cloud so it would be "safe".

    Sadly, it is not limited to cameras. Our refrigerator and stove both have "remote access" (if I had opted to turn it on). Why do I need to be able
    to turn my oven on/off from across the country?

    You can argue that something like a washing machine/clothes dryer should
    be able to send a notification to your phone -- IF IT IS LOCAL! But,
    who would want to receive a notification that their clothes are dry
    when they are away, at work?

    Everybody with a trace of brain would NOT allow that. Those without brains shouldn't complain about privacy and whatever else.

    They've already given up hope for privacy. They've already swallowed
    that pill.

    Do NOT use any moronophones and those totally unknown apps. It might look convenient, but it is no different from leaving all your doors and windows wide open without any locks or whatever. And they don't even have to look
    for excuses to bring a trojan horse into your house -- it is simply impossible to do it without that horse for 99.9999% of all households here
    in the US. The total amount of intellect on the planet is constant and population keeps growing without an end in sight...

    No, people are just lazy. In their actions AND their thinking.
    Businesses know this and exploit it. E.g., all of the "autopay"
    services that rely on you being too lazy/busy to take time to cancel.
    Imagine if you had to explicitly RENEW each year, instead!
    Google (Nest) wants to know if your home is occupied, if you are "active",
    what your energy needs are, etc. -- so they can use that to THEIR
    advantage.
    There is no way it could be fixed by a legislation -- it is simply
    impossible to get it to the people's moronophones differently with the existing home Internet infrastructure.
    You can legislate "opt in" requirements and insist that "basic functionality" must work WITHOUT relying on an external server.

    I've repurposed a Nest thermostat as they have more resources available
    to make something "pretty" that would be a significant task for me. IIRC,
    as sold, it will perform as a thermostat even if not internet enabled. But,
    no remote access in that configuration.

    *Mine* is (now) nothing more than a pretty display that talks to a (hard-wired) HVAC controller elsewhere in the house -- it being a more conventional interface than simply asking the house what the current temperature is
    and commanding it to a different set-point.

    Likewise, "real" telephones that connect to the cell service (who the
    hell wants to carry a cell phone around the house? Or, run to answer
    it before voice mail?? (with a cell-phone gateway, you can use
    more traditional phone appliances -- like answering machines that
    let you screen calls, etc.)
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From John R Walliker@jrwalliker@gmail.com to sci.electronics.design on Thu Aug 13 07:37:36 2026
    From Newsgroup: sci.electronics.design

    On 13/08/2026 05:16, Sergey Kubushyn wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 6:25 PM, Edward Rawde wrote:
    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115isnt$16fv4$1@dont-email.me...
    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to. >>>>>>> And make sure it has a firewall which only alows talk with MoD
    IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    Sure. You can tunnel any protocol over any other protocol if
    you want to wait long enough due to inefficiency.

    It depends what your goals are. If you already have a payload
    installed and are just waiting to *activate* it...

    Or, if you want to know how many (unique) instances of a
    particular product exist... Or, that it has been deployed...

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    The bogus web site would be at an unknown and hence blocked IP.
    I wouldn't believe anything DNS says.

    Again, depends on the environment. An *employer* likely
    wouldn't know to block that domain as their employees
    may opt to resolve a HUGE variety of different names
    as they "surf the web", etc. Note how many domains
    are visited by the "mainstream" sites that YOU visit.

    One can contract with a firm to determine and maintain a list of
    blocked domains (our local library does just that) but, that is
    an ongoing effort -- hence the cost involved in retaining
    that service. And, chances are, they're efforts will still
    have holes that defy their intended blocking criteria. E.g.,
    I may be blocked from a particular site -- yet, can access
    a copy of the site from archive.org. Or, can access a mirror
    that I might know about but they have yet to discover.

    If you take the opposite approach -- of whitelisting ONLY those
    permitted sites -- then you find yourself always on the receiving
    end of complaints from folks with legitimate needs that you've
    effectively blocked out of ignorance.

    Security cameras in people's homes already make me nervous because
    there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they?
    Exactly. All of the products rely on an external server to deliver content
    BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain.

    There is the belief that "there is no privacy" -- which is self-fulfilling, >> if you LET it be.

    Eventually, there will be an "incident" and people will be outraged with how >> exposed they have become. That *may* lead to legislation that coerces folks to
    AVOID accessing material/data that is protected thusly (to reduce their
    legal exposure and financial liability).

    Here is the solution for security cameras (I have 16 of those inside and outside my house) -- only use WIRED PoE cameras on their own subnet without ANY Internet access. Do NOT use ANYTHING that requires access to some mama servers (99.99% of which are in China) for anything. ALL those mamas not
    just require Internet access but also require a port mapping on your router/firewall to their DVR with a login to it. This way you grant access into your internal network with their trojan horse and can only blame yourself for all the consequences.

    They all have a pretty valid excuse for putting a trojan horse into your house even if that horse is 100% benign (one would be a total moron to believe that) and their intentions are 100% innocent (see about morons). The excuse is simple -- most of the home Internet external IPs are dynamic and vast majority of those are from 10.x.x.x range so they are not just unknown but also not routable beyond the provider's router. The only way to show you video feeds from your cameras on your moronophone is to let your DVR connect to their server and establish a tunnel giving them full control over your entire infrasystem. Without that you won't be able to control your cameras and DVR from your moronophone. As an added "bonus" you can store your
    footage in their cloud so it would be "safe".

    Everybody with a trace of brain would NOT allow that. Those without brains shouldn't complain about privacy and whatever else.

    Do NOT use any moronophones and those totally unknown apps. It might look convenient, but it is no different from leaving all your doors and windows wide open without any locks or whatever. And they don't even have to look
    for excuses to bring a trojan horse into your house -- it is simply impossible to do it without that horse for 99.9999% of all households here
    in the US. The total amount of intellect on the planet is constant and population keeps growing without an end in sight...


    There is no way it could be fixed by a legislation -- it is simply
    impossible to get it to the people's moronophones differently with the existing home Internet infrastructure.

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************

    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses. It then becomes much
    easier to run your own servers and avoid sending all your information
    to China. Some of it is sure to get out though.

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Wed Aug 12 23:49:28 2026
    From Newsgroup: sci.electronics.design

    On 8/12/2026 11:37 PM, John R Walliker wrote:
    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses.-a It then becomes much
    easier to run your own servers and avoid sending all your information
    to China.-a Some of it is sure to get out though.
    If companies were liable for data leaks, privacy breaches, etc.
    then they would design their products so they were NOT "middle men".

    You can subscribe to a DDNS service and have an "appliance" that
    acts as a "device gateway" ensuring that each port is isolated
    from all others (so devices can't see each other's traffic or
    "kabitz").

    As it currently stands, there is no reason for a manufacturer to
    remove itself from the loop (and lots of incentive for it to remain there!)
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Sergey Kubushyn@ksi@koi8.net to sci.electronics.design on Thu Aug 13 07:03:21 2026
    From Newsgroup: sci.electronics.design

    John R Walliker <jrwalliker@gmail.com> wrote:
    On 13/08/2026 05:16, Sergey Kubushyn wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 6:25 PM, Edward Rawde wrote:
    "Don Y" <blockedofcourse@foo.invalid> wrote in message news:115isnt$16fv4$1@dont-email.me...
    On 8/12/2026 3:16 PM, Edward Rawde wrote:
    Imagine my astonishment when I found my pings don't get out if I'm off-line.

    Perhaps the lesson learned is not to connect your weapon systems to the Internet

    And if you do, make sure it keeps a log of what it's talking to. >>>>>>>> And make sure it has a firewall which only alows talk with MoD >>>>>>>> IP addresses.
    Unless you can control the entire path to destination, an IP
    address doesn't guarantee a specific endpoint. IP and MAC
    addresses can be spoofed.

    But then your return packets don't go where you want them to and
    in any case the endpoints should be verified in advance and encryption used.

    You may not want/need bidirectional communication.
    E.g., I have designed products that tunnel under DNS to
    "report" on their activities. It's a very low bandwidth
    channel (depending on how surreptitious I want to be)
    but data *does* flow. I can return almost as much data
    as is delivered to me (without attracting too much attention)

    Sure. You can tunnel any protocol over any other protocol if
    you want to wait long enough due to inefficiency.

    It depends what your goals are. If you already have a payload
    installed and are just waiting to *activate* it...

    Or, if you want to know how many (unique) instances of a
    particular product exist... Or, that it has been deployed...

    If you can't control the software in a device, then you can't
    control what it does, doesn't do and under which circumstances.

    True, but you can watch what it does.

    But that requires a fair bit of effort and/or automation.
    If I try to resolve a bogus name once every 5 hours, will
    you notice it in all the other traffic? Or, access a bogus
    website?

    The bogus web site would be at an unknown and hence blocked IP.
    I wouldn't believe anything DNS says.

    Again, depends on the environment. An *employer* likely
    wouldn't know to block that domain as their employees
    may opt to resolve a HUGE variety of different names
    as they "surf the web", etc. Note how many domains
    are visited by the "mainstream" sites that YOU visit.

    One can contract with a firm to determine and maintain a list of
    blocked domains (our local library does just that) but, that is
    an ongoing effort -- hence the cost involved in retaining
    that service. And, chances are, they're efforts will still
    have holes that defy their intended blocking criteria. E.g.,
    I may be blocked from a particular site -- yet, can access
    a copy of the site from archive.org. Or, can access a mirror
    that I might know about but they have yet to discover.

    If you take the opposite approach -- of whitelisting ONLY those
    permitted sites -- then you find yourself always on the receiving
    end of complaints from folks with legitimate needs that you've
    effectively blocked out of ignorance.

    Security cameras in people's homes already make me nervous because >>>>>> there's no way to know who may be looking at the pictures and the
    pictures appear on a mobile phone elsewhere by magic, don't they? >>>>>>> Exactly. All of the products rely on an external server to deliver content
    BACK to you (really???)

    Most people don't know that, and don't care even if you try to explain. >>>
    There is the belief that "there is no privacy" -- which is self-fulfilling, >>> if you LET it be.

    Eventually, there will be an "incident" and people will be outraged with how
    exposed they have become. That *may* lead to legislation that coerces folks to
    AVOID accessing material/data that is protected thusly (to reduce their
    legal exposure and financial liability).

    Here is the solution for security cameras (I have 16 of those inside and
    outside my house) -- only use WIRED PoE cameras on their own subnet without >> ANY Internet access. Do NOT use ANYTHING that requires access to some mama >> servers (99.99% of which are in China) for anything. ALL those mamas not
    just require Internet access but also require a port mapping on your
    router/firewall to their DVR with a login to it. This way you grant access >> into your internal network with their trojan horse and can only blame
    yourself for all the consequences.

    They all have a pretty valid excuse for putting a trojan horse into your
    house even if that horse is 100% benign (one would be a total moron to
    believe that) and their intentions are 100% innocent (see about morons). The >> excuse is simple -- most of the home Internet external IPs are dynamic and >> vast majority of those are from 10.x.x.x range so they are not just unknown >> but also not routable beyond the provider's router. The only way to show you >> video feeds from your cameras on your moronophone is to let your DVR connect >> to their server and establish a tunnel giving them full control over your
    entire infrasystem. Without that you won't be able to control your cameras >> and DVR from your moronophone. As an added "bonus" you can store your
    footage in their cloud so it would be "safe".

    Everybody with a trace of brain would NOT allow that. Those without brains >> shouldn't complain about privacy and whatever else.

    Do NOT use any moronophones and those totally unknown apps. It might look
    convenient, but it is no different from leaving all your doors and windows >> wide open without any locks or whatever. And they don't even have to look
    for excuses to bring a trojan horse into your house -- it is simply
    impossible to do it without that horse for 99.9999% of all households here >> in the US. The total amount of intellect on the planet is constant and
    population keeps growing without an end in sight...


    There is no way it could be fixed by a legislation -- it is simply
    impossible to get it to the people's moronophones differently with the
    existing home Internet infrastructure.

    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses. It then becomes much
    easier to run your own servers and avoid sending all your information
    to China. Some of it is sure to get out though.

    I run all my servers and services locally. Have Cox Business Internet with a CIDR block of 16 static addresses, own domains, own DNS, own mail and WEB servers and whatever else. Only buying connectivity, nothing else.

    However, it is NOT a usual situation and there is ONLY ONE ISP in Las Vegas Valley that provides such option at a reasonable price. Nobody else does
    that at all. Dunno, maybe even that only one doesn't provide it anymore --
    my service is grandfathered; I started it many many years ago...

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Sergey Kubushyn@ksi@koi8.net to sci.electronics.design on Thu Aug 13 07:07:10 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 11:37 PM, John R Walliker wrote:
    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses.-a It then becomes much
    easier to run your own servers and avoid sending all your information
    to China.-a Some of it is sure to get out though.

    If companies were liable for data leaks, privacy breaches, etc.
    then they would design their products so they were NOT "middle men".

    You can subscribe to a DDNS service and have an "appliance" that
    acts as a "device gateway" ensuring that each port is isolated
    from all others (so devices can't see each other's traffic or
    "kabitz").

    That won't work if you have a 10.x.x.x external IP. No DDNS would help you
    -- those addresses are not routable. You are only able to access the Net because of *NAT on the provider's router.

    As it currently stands, there is no reason for a manufacturer to
    remove itself from the loop (and lots of incentive for it to remain there!)

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Thu Aug 13 00:19:00 2026
    From Newsgroup: sci.electronics.design

    On 8/13/2026 12:07 AM, Sergey Kubushyn wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 11:37 PM, John R Walliker wrote:
    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses.-a It then becomes much
    easier to run your own servers and avoid sending all your information
    to China.-a Some of it is sure to get out though.

    If companies were liable for data leaks, privacy breaches, etc.
    then they would design their products so they were NOT "middle men".

    You can subscribe to a DDNS service and have an "appliance" that
    acts as a "device gateway" ensuring that each port is isolated
    from all others (so devices can't see each other's traffic or
    "kabitz").

    That won't work if you have a 10.x.x.x external IP. No DDNS would help you
    -- those addresses are not routable. You are only able to access the Net because of *NAT on the provider's router.

    You have RFC1918 addresses *internally*. What is exposed is
    assigned (static or dynamic) by your ISP. *That* is what needs to
    be accessible "from the outside world".

    You have an appliance map internal IPs to services on that address.

    Many AUPs will contain language that makes this a bit tricky as you
    are (technically) operating a server -- often expressly prohibited.

    The problem comes with ISPs who heavily NAT the addresses that they
    serve. But, you can still workaround that by having the "appliance"
    initiate the connection to your remote device. It just needs to be
    aware that a connection attempt is being made.

    Given that phones (the most common "external device") can run apps,
    you can embed any protocol issues in the "app" so it's hidden
    from the user.

    E.g., my server "hides" from probes and will only acknowledge an attempt
    at contact if a particular sequence of packets (connection attempts)
    are made in a narrow window. And, once connected, ignores other
    IPs that suspect its existence (i.e., a ticket is only granted to the
    IP that navigated the sequence and that ticket has an expiration)

    In ages past (1990's), I would rely on email to establish a
    connection as neither side knew where the other might be.
    Slow and tedious but easily automated.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From liz@liz@poppyrecords.invalid.invalid (Liz Tuddenham) to sci.electronics.design on Thu Aug 13 10:52:01 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote:

    [...]
    Or, if approaching the house, I can
    determine if I've been advised to park in the driveway due
    to a guest vehicle being in the garage

    Reminds me of the [probably apocryphal] insurance claim:

    "The fog was thick and, as I turned into my driveway, I collided with a
    tree I haven't got."
    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Thu Aug 13 03:35:43 2026
    From Newsgroup: sci.electronics.design

    On 8/13/2026 2:52 AM, Liz Tuddenham wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:

    [...]
    Or, if approaching the house, I can
    determine if I've been advised to park in the driveway due
    to a guest vehicle being in the garage

    Reminds me of the [probably apocryphal] insurance claim:

    "The fog was thick and, as I turned into my driveway, I collided with a
    tree I haven't got."

    A neighbor's teenage son made a similar claim to explain the damage to
    his parents' car. And, as evidence, pointed to the "skid marks"
    leading up to a palm tree in their front yard.

    But, it was obvious the "skid marks" were made by dragging his feet
    through the soft dirt as the distance between them diminished significantly
    as they neared the tree!

    Or, as I explained to his dad, the next morning:
    "He must have been driving one of those new-fangled, variable
    axle-track vehicles..."

    The humor was lost on the father (perhaps he was unfamiliar with the term?)

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Sergey Kubushyn@ksi@koi8.net to sci.electronics.design on Thu Aug 13 16:48:36 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/13/2026 12:07 AM, Sergey Kubushyn wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/12/2026 11:37 PM, John R Walliker wrote:
    Its not mainstream, but there are internet service providers who
    give static public IPv4 and IPv6 addresses.-a It then becomes much
    easier to run your own servers and avoid sending all your information
    to China.-a Some of it is sure to get out though.

    If companies were liable for data leaks, privacy breaches, etc.
    then they would design their products so they were NOT "middle men".

    You can subscribe to a DDNS service and have an "appliance" that
    acts as a "device gateway" ensuring that each port is isolated
    from all others (so devices can't see each other's traffic or
    "kabitz").

    That won't work if you have a 10.x.x.x external IP. No DDNS would help you >> -- those addresses are not routable. You are only able to access the Net
    because of *NAT on the provider's router.

    You have RFC1918 addresses *internally*. What is exposed is
    assigned (static or dynamic) by your ISP. *That* is what needs to
    be accessible "from the outside world".

    You have an appliance map internal IPs to services on that address.

    Sure. The only problem is that the appliance is the ISP's router that you
    don't have any control over. It exposes ONE IP for all the devices it NATs
    and you don't know what that address is. Then, it only works ONE WAY, from
    the internal network to outside world. There is no way to the internal
    network from outside world. It DOES forward (and de-NATs) the packets from ESTABLISHED connections but there is no way to ESTABLISH connection from outside world to a device behind the NAT.

    Thw only way how it is done is having a trojan horse in the DVR (or
    whatever) that establish a connection to mama server from inside the local
    net, over NAT as if it is a usual user connection to a web site or whatever. Then, the reverse tunnel is established so that mama server gets connected
    to your internal net and can do whatever it wants inside your [now breached] security perimeter.

    Nothing special here but it requires bringing a trojan horse inside your perimeter and let it talk to external world, no matter over NAT or not.
    There is no way inside the perimeter WITHOUT that trojan horse.

    The mama server lives on a routable legal IP so all those moronophones can access it from anywhere and see videos from their cameras. That is a USEFUL hack which is the only way possible to somehow feed your videos (and perform some control) through that NAT on a provider's router. It is still a HACK
    and it gives the mama server (and whoever might hide behind it) the full
    access INSIDE your security perimeter i.e. it is a full blown 100% security breach. And it is made not by somebody finding a tricky way to get in but
    the user himself opening his door wide open without any guards.


    Many AUPs will contain language that makes this a bit tricky as you
    are (technically) operating a server -- often expressly prohibited.

    The problem comes with ISPs who heavily NAT the addresses that they
    serve. But, you can still workaround that by having the "appliance"
    initiate the connection to your remote device. It just needs to be
    aware that a connection attempt is being made.

    Given that phones (the most common "external device") can run apps,
    you can embed any protocol issues in the "app" so it's hidden
    from the user.

    E.g., my server "hides" from probes and will only acknowledge an attempt
    at contact if a particular sequence of packets (connection attempts)
    are made in a narrow window. And, once connected, ignores other
    IPs that suspect its existence (i.e., a ticket is only granted to the
    IP that navigated the sequence and that ticket has an expiration)

    In ages past (1990's), I would rely on email to establish a
    connection as neither side knew where the other might be.
    Slow and tedious but easily automated.

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From =?UTF-8?B?Q8OzaWzDrW4=?= =?UTF-8?B?IE5pb2Nsw6Fzw61u?= =?UTF-8?B?IEdsb3N0w6lpcg==?=@thanks-to@Taf.com to sci.electronics.design on Thu Aug 13 17:05:43 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote: |------------------------------------------------------------------|
    |"A camera can selectively decide NOT to see certain things, based |
    |on features in the image. You won't know about that until |
    |you try to see something and wonder why what the camera reports is|
    |not what your own eyes see." | |------------------------------------------------------------------|

    Avast anti-virus-scaremongering software on Windows can evade
    screen-capture software, so it is less easy to make copies of baloney
    which it attempts to scare customers with. It does not always hide
    from screen-capture software. Examples are in HTTPS://Gloucester.Insomnia247.NL/Norton_nonsense/
    (S. HTTP://Gloucester.Insomnia247.NL/ fuer Kontaktdaten!)
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Thu Aug 13 12:09:46 2026
    From Newsgroup: sci.electronics.design

    On 8/13/2026 9:48 AM, Sergey Kubushyn wrote:
    That won't work if you have a 10.x.x.x external IP. No DDNS would help you >>> -- those addresses are not routable. You are only able to access the Net >>> because of *NAT on the provider's router.

    You have RFC1918 addresses *internally*. What is exposed is
    assigned (static or dynamic) by your ISP. *That* is what needs to
    be accessible "from the outside world".

    You have an appliance map internal IPs to services on that address.

    Sure. The only problem is that the appliance is the ISP's router that you don't have any control over. It exposes ONE IP for all the devices it NATs and you don't know what that address is. Then, it only works ONE WAY, from the internal network to outside world. There is no way to the internal network from outside world. It DOES forward (and de-NATs) the packets from ESTABLISHED connections but there is no way to ESTABLISH connection from outside world to a device behind the NAT.

    No. This is a commodity function. You can purchase it from
    whomever you trust, roll your own, etc. Likewise the "mama"
    service can be provided by any party.

    You can select end-to-end encryption whereby the "mama" doesn't
    see any of your content but just provides a connection to your
    "remote" -- which decrypts the content. *YOU* take on
    the responsibility of selecting the service that fits your needs,
    monetary budget and technical level of expertise. Instead of letting
    the manufacturer "make it easy for you" -- and inserting themselves
    into the process and data stream.
    Thw only way how it is done is having a trojan horse in the DVR (or
    whatever) that establish a connection to mama server from inside the local net, over NAT as if it is a usual user connection to a web site or whatever.

    At your level of paranoia, ANY software that you are running on your
    machines -- or on any appliances inside your firewall -- is a trojan.
    If you feel that away, then you can "roll your own" and still avoid
    being "hardwired" to a particular "mama".
    Then, the reverse tunnel is established so that mama server gets connected
    to your internal net and can do whatever it wants inside your [now breached] security perimeter.

    You can isolate ports so a device on one port of your router/appliance
    can't see or access devices on the other ports.

    <https://www.xda-developers.com/port-isolation-best-switch-security-feature-youre-not-using/>

    None of this is magic.

    Nothing special here but it requires bringing a trojan horse inside your perimeter and let it talk to external world, no matter over NAT or not.
    There is no way inside the perimeter WITHOUT that trojan horse.

    All of the above indicate how that "trojan horse" can be constrained so
    that only the device of interest has access to the outside world and
    NOT the inside world.

    Unless you are expecting everyone (device, appliance manufacturer,
    service providers, etc.) to be conspiring to give the appearance
    of security while secretly opening backdoors for exploitation.

    The mama server lives on a routable legal IP so all those moronophones can access it from anywhere and see videos from their cameras. That is a USEFUL hack which is the only way possible to somehow feed your videos (and perform some control) through that NAT on a provider's router. It is still a HACK
    and it gives the mama server (and whoever might hide behind it) the full access INSIDE your security perimeter i.e. it is a full blown 100% security breach. And it is made not by somebody finding a tricky way to get in but
    the user himself opening his door wide open without any guards.

    No, the topology doesn't. Current implementations *might* -- for folks
    who don't know how to configure their network infrastructure. But, it
    is not a necessary consequence of that.

    You can LIVE in our guest bedroom and access the internet using
    software of your own *design* -- and still not access any of the
    hundreds of other hosts within the outer perimeter. Because I
    considered that an important criteria when designing the network.

    [*My* "stealth server" sits at a friend's business. Despite my having
    remote access to it -- and it having considerable compute and storage
    resources -- there's nothing that I can do to interfere with his
    business operation. To him, I am as trustworthy as some no-name IoT
    device.]

    There is nothing that constrains a manufacturer to AVOID putting itself
    in the middle -- or, to avoid accessing personal/private data.
    And, as there is financial value to them doing so, they, naturally, do!

    If legislation enforced a "fiduciary" duty on anyone holding or
    processing such data, then lawsuits arising from breaches would
    quickly prove the data to be worth less than the associated risk.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Sergey Kubushyn@ksi@koi8.net to sci.electronics.design on Thu Aug 13 21:24:03 2026
    From Newsgroup: sci.electronics.design

    Don Y <blockedofcourse@foo.invalid> wrote:
    On 8/13/2026 9:48 AM, Sergey Kubushyn wrote:
    That won't work if you have a 10.x.x.x external IP. No DDNS would help you >>>> -- those addresses are not routable. You are only able to access the Net >>>> because of *NAT on the provider's router.

    You have RFC1918 addresses *internally*. What is exposed is
    assigned (static or dynamic) by your ISP. *That* is what needs to
    be accessible "from the outside world".

    You have an appliance map internal IPs to services on that address.

    Sure. The only problem is that the appliance is the ISP's router that you
    don't have any control over. It exposes ONE IP for all the devices it NATs >> and you don't know what that address is. Then, it only works ONE WAY, from >> the internal network to outside world. There is no way to the internal
    network from outside world. It DOES forward (and de-NATs) the packets from >> ESTABLISHED connections but there is no way to ESTABLISH connection from
    outside world to a device behind the NAT.

    No. This is a commodity function. You can purchase it from
    whomever you trust, roll your own, etc. Likewise the "mama"
    service can be provided by any party.

    OK, I'm tired and won't go any further...

    The function is commodity. You can NAT any address to any address. The
    problem is you don't have a ROUTABLE external address. Whatever the ISP gave you on your external interface is NOT routable. It is from RFC1918 range. It
    is NAT'd further down, in an ISP router, into some routable address that you don't know. There is no way you can INITIATE connection from outside to your RFC1918 address which is the only one you have on your external interface.
    It doesn't matter what you have inside. And you can't initiate connection to your internal network using that IP you've been NAT'd to even if you knew
    it.

    Your moronophone lives OUTSIDE your internal network. It might be also NAT'd
    or not. It can only access whatever is accessible over the Internet. 99.99%
    of "home" internet setups don't have ANY exposed IP addresses that could be accessed over the Internet.

    The only way how it can connect to your DVR controlling all your cameras is
    by using a HACK. You setup some middleman server accessible from Internet
    and make a trojan horse in that DVR, which is somewhere inside your
    perimeter, connect to that middlemen and establish a tunnel thus breaching
    your perimeter. The DVR and its cameras might be on their own network, firewalled from the rest of your internal net[s] but that doesn't matter.
    You ONLY have ONE external IP for your ENTIRE infrastructure so everything
    goes via that interface. Even if you somehow firewall that cameras' network, the mama middleman still have FULL control over your DVR and all security cameras. It can't be done other way because your moronophone app must be
    able to control your cameras and DVR -- it won't make sense otherwise.

    You can select end-to-end encryption whereby the "mama" doesn't
    see any of your content but just provides a connection to your
    "remote" -- which decrypts the content. *YOU* take on
    the responsibility of selecting the service that fits your needs,
    monetary budget and technical level of expertise. Instead of letting
    the manufacturer "make it easy for you" -- and inserting themselves
    into the process and data stream.

    Sure you can. But that is not something that 99.9999% of the "home" users
    are able to do. Furthermore, you will have to build your own DVR that would talk to that your own server and make your own monophone's app that would
    talk to that server using your own protocol.

    Thw only way how it is done is having a trojan horse in the DVR (or
    whatever) that establish a connection to mama server from inside the local >> net, over NAT as if it is a usual user connection to a web site or whatever.

    At your level of paranoia, ANY software that you are running on your
    machines -- or on any appliances inside your firewall -- is a trojan.
    If you feel that away, then you can "roll your own" and still avoid
    being "hardwired" to a particular "mama".

    Who paranoid?! I'm paranoid? Hm... Yes, I AM paranoid. But am I paranoid ENOUGH?

    Then, the reverse tunnel is established so that mama server gets connected >> to your internal net and can do whatever it wants inside your [now breached] >> security perimeter.

    You can isolate ports so a device on one port of your router/appliance
    can't see or access devices on the other ports.

    <https://www.xda-developers.com/port-isolation-best-switch-security-feature-youre-not-using/>

    None of this is magic.

    Nothing special here but it requires bringing a trojan horse inside your
    perimeter and let it talk to external world, no matter over NAT or not.
    There is no way inside the perimeter WITHOUT that trojan horse.

    All of the above indicate how that "trojan horse" can be constrained so
    that only the device of interest has access to the outside world and
    NOT the inside world.

    Unless you are expecting everyone (device, appliance manufacturer,
    service providers, etc.) to be conspiring to give the appearance
    of security while secretly opening backdoors for exploitation.

    They all do. Ever heard of, e.g. Imperva and such? And all devices have
    their own firmware with essentially ALL "US" security cameras providers
    like, e.g. Lorex are just a tiny storefronts for the Chinese companies.

    The mama server lives on a routable legal IP so all those moronophones can >> access it from anywhere and see videos from their cameras. That is a USEFUL >> hack which is the only way possible to somehow feed your videos (and perform >> some control) through that NAT on a provider's router. It is still a HACK
    and it gives the mama server (and whoever might hide behind it) the full
    access INSIDE your security perimeter i.e. it is a full blown 100% security >> breach. And it is made not by somebody finding a tricky way to get in but
    the user himself opening his door wide open without any guards.

    No, the topology doesn't. Current implementations *might* -- for folks
    who don't know how to configure their network infrastructure. But, it
    is not a necessary consequence of that.

    You can LIVE in our guest bedroom and access the internet using
    software of your own *design* -- and still not access any of the
    hundreds of other hosts within the outer perimeter. Because I
    considered that an important criteria when designing the network.

    [*My* "stealth server" sits at a friend's business. Despite my having
    remote access to it -- and it having considerable compute and storage resources -- there's nothing that I can do to interfere with his
    business operation. To him, I am as trustworthy as some no-name IoT
    device.]

    There is nothing that constrains a manufacturer to AVOID putting itself
    in the middle -- or, to avoid accessing personal/private data.
    And, as there is financial value to them doing so, they, naturally, do!

    If legislation enforced a "fiduciary" duty on anyone holding or
    processing such data, then lawsuits arising from breaches would
    quickly prove the data to be worth less than the associated risk.

    ---
    ******************************************************************
    * KSI@home KOI8 Net < > The impossible we do immediately. *
    * Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From =?UTF-8?B?Q8OzaWzDrW4=?= =?UTF-8?B?IE5pb2Nsw6Fzw61u?= =?UTF-8?B?IEdsb3N0w6lpcg==?=@thanks-to@Taf.com to sci.electronics.design on Thu Aug 13 22:07:57 2026
    From Newsgroup: sci.electronics.design

    Sergey Kubushyn <ksi@Koi8.net> wrote:
    |-------------|
    |"moronophone"|
    |-------------|

    :)
    (S. HTTP://Gloucester.Insomnia247.NL/ fuer Kontaktdaten!)
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Thu Aug 13 17:19:48 2026
    From Newsgroup: sci.electronics.design

    On 8/13/2026 2:24 PM, Sergey Kubushyn wrote:
    Sure. The only problem is that the appliance is the ISP's router that you >>> don't have any control over. It exposes ONE IP for all the devices it NATs >>> and you don't know what that address is. Then, it only works ONE WAY, from >>> the internal network to outside world. There is no way to the internal
    network from outside world. It DOES forward (and de-NATs) the packets from >>> ESTABLISHED connections but there is no way to ESTABLISH connection from >>> outside world to a device behind the NAT.

    No. This is a commodity function. You can purchase it from
    whomever you trust, roll your own, etc. Likewise the "mama"
    service can be provided by any party.

    OK, I'm tired and won't go any further...

    The function is commodity. You can NAT any address to any address. The problem is you don't have a ROUTABLE external address. Whatever the ISP gave you on your external interface is NOT routable. It is from RFC1918 range. It

    No, it is not. My current IP address is 67.212.x.y -- definitely NOT one
    of the RFC1918 addresses. If I visit a place like grc.com, this is the
    address *it* sees, prominently displays and attempts to contact in its probes.

    So, the address is routable.

    Getting *though* the ISPs NAT is what makes my machine not accessible to inbound connections. And, the NAT performed in *my* router.

    is NAT'd further down, in an ISP router, into some routable address that you don't know. There is no way you can INITIATE connection from outside to your RFC1918 address which is the only one you have on your external interface.
    It doesn't matter what you have inside. And you can't initiate connection to your internal network using that IP you've been NAT'd to even if you knew
    it.

    That's just a consequence of how things are done, "now". The COTS IoT
    devices I've got can all be accessed from outside my home -- because they
    rely on a service that can be accessed from outside my home. That
    doesn't mean they are malevolent agents -- any more than Microsoft's,
    NetBSD's or FreeBSD's OSs are intentionally trying to compromise everything here.

    If I don't want them to talk to the outside world, then I place them
    on unroutable subnets. Or, disable their outfacing interfaces. (I
    don't think anyone should be able to access my stove or refrigerator)

    If I don't tell this PC where my printer is located (IP), it can't find it unless it responds to certain protocols on certain ports AND the PC
    actively probes those. If the printer is on a different subnet, good luck
    to the OS trying to find it!

    Your moronophone lives OUTSIDE your internal network. It might be also NAT'd or not. It can only access whatever is accessible over the Internet. 99.99% of "home" internet setups don't have ANY exposed IP addresses that could be accessed over the Internet.

    99.999999999% just indicates people don't take care to address this.
    They've been *given* an effortless way around this "problem" -- why
    should they invest effort to solve a problem that they think has been
    solved?

    How many IoT devices still use factory passwords? Or, insecure passwords?
    Does that mean passwords are a waste of time and should be removed from products?

    People are lazy and do the minimum that is required to get to where
    they (think they) want to be. But, that's not a failing of the protocols
    or devices; rather, a failing of those people.

    The only way how it can connect to your DVR controlling all your cameras is by using a HACK. You setup some middleman server accessible from Internet
    and make a trojan horse in that DVR, which is somewhere inside your perimeter, connect to that middlemen and establish a tunnel thus breaching your perimeter. The DVR and its cameras might be on their own network, firewalled from the rest of your internal net[s] but that doesn't matter.

    I'm currently using IP cameras. There is no path (that their manufacturer would be aware of) for them to contact the outside world. Yet, they still provide the purchased functionality: delivering video to the "agents"
    that do scene analysis for me.

    My oven and refrigerator still heat up foods and chill them, respectively. Despite not being able to talk to the outside world.

    You ONLY have ONE external IP for your ENTIRE infrastructure so everything goes via that interface. Even if you somehow firewall that cameras' network, the mama middleman still have FULL control over your DVR and all security cameras. It can't be done other way because your moronophone app must be
    able to control your cameras and DVR -- it won't make sense otherwise.

    Again, no. If you don't know how to configure your internal network, then that's a limitation of your skillset, not the technology.

    The middleman has control over the DVR that *they* implement, not anything
    that you have chosen to implement "locally" -- unless the video from the
    camera travels TO their server before coming back to YOUR (local) DVR.

    But, that's true of any non-encrypted connection. There's no guarantee
    that what I am typing is being accurately delivered to my news server
    as it passes through many hands -- including those of the news server.

    And, there's no guarantee that any encryption protocol hasn't been
    hacked.

    But, a lot of effort would have to be expended to ensure every USENET
    post, social media post, email, etc. that is "secretly distorted"
    shows no evidence (to any party) of that distortion.

    You can select end-to-end encryption whereby the "mama" doesn't
    see any of your content but just provides a connection to your
    "remote" -- which decrypts the content. *YOU* take on
    the responsibility of selecting the service that fits your needs,
    monetary budget and technical level of expertise. Instead of letting
    the manufacturer "make it easy for you" -- and inserting themselves
    into the process and data stream.

    Sure you can. But that is not something that 99.9999% of the "home" users
    are able to do. Furthermore, you will have to build your own DVR that would talk to that your own server and make your own monophone's app that would talk to that server using your own protocol.

    No, you don't. SOMEONE will want to address that market with a
    product that can survive a security audit. They will set their
    pricing structure to be able to operate from the revenues generated
    by that service instead of leaching information from their users
    (e.g., duck-duck-go vs google business models).

    The question is whether there is a significant market to make any
    "realistic" pricing scheme viable.

    But, if sheeple are content with insecure nanny cams spying on them
    while they breast feed or disable a moving vehicle or override a water treatment plant PLC, then what hope to find "better" products? At an affordable price (how much is security worth -- in dollars and cents)

    When YOU design a product, where does security sit on the list of priorities? What will you sacrifice in the name of security? Can you *invite* foreign code to run *in* your device and still maintain security??! Can you detect when you've been "compromised"?

    <https://www.businessinsider.com/hackers-stole-a-casinos-database-through-a-thermometer-in-the-lobby-fish-tank-2018-4>

    <https://www.kaspersky.com/blog/blackhat-jeep-cherokee-hack-explained/9493/>

    https://www.healthdatamanagement.com/articles/fda-finds-st-jude-medical-cardiac-devices-can-be-hacked>

    <https://en.wikipedia.org/wiki/BrickerBot>

    These aren't malevolent actors with buried back-doors or other exploitable hooks. Its disingenuous to rant about stupid users when manufacturers are equally incompetent/unserious about securing their products.

    Thw only way how it is done is having a trojan horse in the DVR (or
    whatever) that establish a connection to mama server from inside the local >>> net, over NAT as if it is a usual user connection to a web site or whatever.

    At your level of paranoia, ANY software that you are running on your
    machines -- or on any appliances inside your firewall -- is a trojan.
    If you feel that away, then you can "roll your own" and still avoid
    being "hardwired" to a particular "mama".

    Who paranoid?! I'm paranoid? Hm... Yes, I AM paranoid. But am I paranoid ENOUGH?

    Likely not. I drive each of my nodes over a separate VPN so that the node
    can ONLY talk to the switch -- even if you rewired the fabric (no credntials shared with other nodes). I.e., an IP camera talks to an SBC that talks
    to the switch -- so, any "misbehaving" from the camera is identified and isolated before it gets to the switch: "No, you can't phone home!".

    Externally accessible cables are run through EMC so monitoring or injecting signals is difficult, requires some time/effort and is likely to be
    noticeable -- not least of which to me as I wonder why a node is
    unexpectedly misbehaving (now or evidenced in logs).

    Furthermore, the switch only allows certain connections between devices
    based on the current (instantaneous) system configuration. E.g., a camera should never try to contact the HVAC controller -- doing so is an indication that the camera is malfunctioning or compromised.

    A malfunctioning/compromised device is of no value so power it off (PoE)
    AND ignore any further traffic from that port (in case an adversary can
    supply auxiliary power to that node). Traffic apparently originating from
    a node known to be "off" is indicative of a failure.

    I.e., "can't happen" means DON'T LET IT HAPPEN!

    [Of course, an adversary could physically break into my equipment closet
    and all bets are off. But, if he can do that, why not just take any
    valuables that he finds and be off with them?]

    Then, the reverse tunnel is established so that mama server gets connected >>> to your internal net and can do whatever it wants inside your [now breached]
    security perimeter.

    You can isolate ports so a device on one port of your router/appliance
    can't see or access devices on the other ports.

    <https://www.xda-developers.com/port-isolation-best-switch-security-feature-youre-not-using/>

    None of this is magic.

    Nothing special here but it requires bringing a trojan horse inside your >>> perimeter and let it talk to external world, no matter over NAT or not.
    There is no way inside the perimeter WITHOUT that trojan horse.

    All of the above indicate how that "trojan horse" can be constrained so
    that only the device of interest has access to the outside world and
    NOT the inside world.

    Unless you are expecting everyone (device, appliance manufacturer,
    service providers, etc.) to be conspiring to give the appearance
    of security while secretly opening backdoors for exploitation.

    They all do. Ever heard of, e.g. Imperva and such? And all devices have
    their own firmware with essentially ALL "US" security cameras providers
    like, e.g. Lorex are just a tiny storefronts for the Chinese companies.

    Again, that's not a limitation of the technology, just what folks
    are willing to PAY for it (in its current state). People drive the
    market, often causing "better" products to fail against inferior
    offerings.

    "For enough money" you can get whatever you want. The apples that I
    like aren't available, locally. I can buy half a dozen of them, online,
    for $4.50 -- each. But, can't have them shipped into the state. How
    much traveling am I willing to do to buy apples?? Am I willing to break
    the law *smuggling* them into the state???

    The question becomes what you want to PAY (in money, time, convenience, etc.) for things. When The Unwashed/Mindless Masses drive the market, you're largely stuck with *their* choices.

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From brian@nospam@b-howie.co.uk to sci.electronics.design on Sat Aug 15 08:04:26 2026
    From Newsgroup: sci.electronics.design

    In message <115hff6$n3ef$1@dont-email.me>, Don Y
    <blockedofcourse@foo.invalid> writes
    On 8/12/2026 1:12 AM, brian wrote:
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward >>Rawde <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability
    assessment" of the drones, the cameras were found to have sent a
    squark rCo also known as a heartbeat communication rCo to a Chinese
    IP address. "
    Imagine my astonishment when I found my pings don't get out if I'm >>off-line.
    Perhaps the lesson learned is not to connect your weapon systems to
    the Internet
    Whether any "successful" communication actually took place isn't the point. >Rather, the origins of some part of the weapon system are now of concern. >What *else* will it do (or not do)?

    I suppose it could be of use to the "Find my drone/missile etc" app on a
    smart phone.

    Brian
    --
    Brian Howie
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Don Y@blockedofcourse@foo.invalid to sci.electronics.design on Sat Aug 15 00:14:34 2026
    From Newsgroup: sci.electronics.design

    On 8/15/2026 12:04 AM, brian wrote:
    In message <115hff6$n3ef$1@dont-email.me>, Don Y <blockedofcourse@foo.invalid>
    writes
    On 8/12/2026 1:12 AM, brian wrote:
    In message <115e076$2hrq$1@nnrp.usenet.blueworldhosting.com>, Edward Rawde
    <invalid@invalid.invalid> writes
    https://www.bbc.com/news/articles/c4gwl3n7ne7o


    " During what the MoD called a "routine cyber vulnerability assessment" of >>> the-a drones, the cameras were found to have sent a squark rCo also known as a
    heartbeat communication rCo to a Chinese IP address. "
    -a Imagine my astonishment when I found my pings don't get out if I'm off-line.
    -aPerhaps the lesson learned is not to connect your weapon systems to the >>> Internet
    Whether any "successful" communication actually took place isn't the point. >> Rather, the origins of some part of the weapon system are now of concern.
    What *else* will it do (or not do)?

    I suppose it could be of use to the "Find my drone/missile etc" app on a smart
    phone.
    If the message is unique (S/N based), then it can be used to tally
    the number of items deployed (vs. number of items sold)
    --- Synchronet 3.22a-Linux NewsLink 1.2