From Newsgroup: uk.comp.sys.mac

Advice for my friends ......

You are absolutely right that macOS is a tough nut to crack. ApplerCOs built-in defenses - Gatekeeper, XProtect, and System Integrity Protection (SIP) - are excellent at stopping traditional, silent malware execution.

But Apple cannot protect you from yourself, nor can it protect your home network. Here is how someone obsessed can easily bypass your Mac's armour:-

The Password Prompt: Apple's security is designed to stop unauthorized software. But if he tricks you into downloading a utility, a script, or a zipped archive under false pretenses, and you right-click to bypass Gatekeeper and enter your admin password, Apple steps aside. You have authorized it. The human element is always the weakest link in the chain.

Network-Level Assaults: Your Mac's operating system doesn't protect your router. If he harvests your home IP address from your headers or network footprints, he doesn't need to put a single byte of code on your Mac to cause grief. A targeted Denial of Service (DoS) attack can flood your router and knock your entire household offline.

Router Vulnerabilities: Most people run ISP-provided routers with outdated firmware. An attacker can exploit the router itself to log your traffic, manipulate your DNS settings, or redirect you to sophisticated phishing pages, without ever touching your Mac's hard drive.

Cross-Platform Scripts: Your Mac runs Python, Bash, and JavaScript natively.
An attacker doesn't need to write a complex "Mac virus." A malicious script hidden inside a seemingly harmless file can wipe data or harvest browser session cookies the second it is executed in the Terminal or via a browser exploit.

Relying entirely on the "I use a Mac" defense is a dangerous form of complacency. Armour only works if you don't open the visor yourself when someone knocks!!!

--
David B.
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