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Cybersecurity and Infrastructure Security Agency (CISA)

You are subscribed to Cybersecurity Advisories for Cybersecurity and Infras= tructure Security Agency. This information has recently been updated and is=
now available.

NIST and CISA Finalize Interagency Report on Protecting Tokens and Assertio=
ns from Forgery Theft and Misuse [ https://www.cisa.gov/resources-tools/res= ources/protecting-tokens-and-assertions-forgery-theft-and-misuse-implementa= tion-recommendations-agencies?utm_source=3DProtectingTokensAssertions&utm_m= edium=3DGovDelivery ] 09/15/2026 11:15 AM EST=20

Today, the Cybersecurity and Infrastructure Security Agency (CISA) and Nati= onal Institute of Standards and Technology (NIST) released the final versio=
n of Interagency Report (IR) 8587, Protecting Tokens and Assertions from Fo= rgery, Theft, and Misuse: Implementation Recommendations for Agencies and C= loud Service Providers (CSPs) [ https://www.cisa.gov/resources-tools/resour= ces/protecting-tokens-and-assertions-forgery-theft-and-misuse-implementatio= n-recommendations-agencies?utm_source=3DProtectingTokensAssertions&utm_medi= um=3DGovDelivery ] to help federal agencies and CSPs safeguard the identity=
tokens and assertions that underpin modern single sign-on (SSO), federatio=
n, and application programming interface (API)-based access=E2=80=94systems=
that cyber threat actors are increasingly targeting to move laterally thro= ugh enterprise networks and reach sensitive data.


This report expands on NIST=E2=80=99s Special Publication 800-53 (revision =
5) Security and Privacy Controls for Information Systems and Organizations =
[ https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final ], supports Executive = Order 14306 [ https://www.congress.gov/crs_external_products/IN/HTML/IN1257= 0.html ], and incorporates feedback from a public comment period and webina=
r, along with input from CISA=E2=80=99s ongoing work with CSPs and experts = across government and industry through the Joint Cyber Defense Collaborativ=
e [ https://www.cisa.gov/topics/partnerships-and-collaboration/joint-cyber-= defense-collaborative ]. It also addresses recent high-profile attacks, emp= hasizes the importance of secure and configurable cloud services, and provi= des technical recommendations, including:


* Architectural considerations for identity providers and authorization s= ervers;=20
* Enhancements to key management, token verification, and token lifecycle=
controls;=20
* Guidelines for securing SSO, federation, and API access relying on digi= tally signed, asymmetrically encrypted tokens; and=20
* Principles for configurable, transparent, and interoperable controls su= pporting risk-informed, threat-adaptive defenses across cloud environments.= =20

The recommendations in this report apply to both commercial and government-= operated cloud services. CISA encourages all organizations and CSPs to revi=
ew the full report [ https://www.cisa.gov/resources-tools/resources/protect= ing-tokens-and-assertions-forgery-theft-and-misuse-implementation-recommend= ations-agencies?utm_source=3DProtectingTokensAssertions&utm_medium=3DGovDel= ivery ] and begin implementation. CISA also urges CSPs and cloud consumers =
to consider adopting the guidelines outlined in IR 8587 to improve the secu= rity of their cloud systems.

Please share your thoughts with us through this anonymous survey [ https://= cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?Source=3DGovDeliv= eryNISTProtectingTokensAssertions ]. We appreciate your feedback.

This product is provided subject to this Notification [ https://www.cisa.go= v/notification ] and this Privacy & Use [ https://www.cisa.gov/privacy-poli=
cy ] policy.

body { font-size: 1em; font-family: Arial, Verdana, sans-serif; font-weight=
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Having trouble viewing this message?=C2=A0View it as a webpage [ https://co= ntent.govdelivery.com/accounts/USDHSCISA/bulletins/42accd4 ].=C2=A0 [ https= ://content.govdelivery.com/accounts/USDHS/bulletins/292141e ]

You are subscribed to updates from the Cybersecurity and Infrastructure Sec= urity Agency [ https://www.cisa.gov ] (CISA)
Manage Subscriptions [ https://public.govdelivery.com/accounts/USDHSCISA/su= bscriber/edit?preferences=3Dtrue#tab1 ]=C2=A0=C2=A0|=C2=A0=C2=A0Privacy Pol= icy [ https://www.cisa.gov/privacy-policy ]=C2=A0=C2=A0|=C2=A0 Help [ https= ://subscriberhelp.granicus.com/s/article/Subscriber-Help-Center ] [ https:/= /insights.govdelivery.com/Communications/Subscriber_Help_Center ]

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<p><img src=3D"https://content.govdelivery.com/attachments/fancy_images/U= SDHSCISA/2020/06/3486054/05152023-gov-delivery-banner-copy_original.png" al= t=3D"Cybersecurity and Infrastructure Security Agency (CISA)" title=3D"" wi= dth=3D"600" height=3D"100"></p>
<p>You are subscribed to Cybersecurity Advisories for Cybersecurity and I= nfrastructure Security Agency. This information has recently been updated a=
nd is now available.</p>
<div class=3D"rss_item" style=3D"margin-bottom: 2em;">
<div class=3D"rss_title" style=3D"font-weight: bold; font-size: 120%; margi=
n: 0 0 0.3em; padding: 0;"><a href=3D"https://www.cisa.gov/resources-tools/= resources/protecting-tokens-and-assertions-forgery-theft-and-misuse-impleme= ntation-recommendations-agencies?utm_source=3DProtectingTokensAssertions&ut= m_medium=3DGovDelivery" target=3D"_blank" title=3D"NIST and CISA Finalize I= nteragency Report on Protecting Tokens and Assertions from Forgery Theft an=
d Misuse" rel=3D"noopener">NIST and CISA Finalize Interagency Report on Pro= tecting Tokens and Assertions from Forgery Theft and Misuse</a></div>
<div class=3D"rss_pub_date" style=3D"font-size: 90%; font-style: italic; co= lor: #666666; margin: 0 0 0.3em; padding: 0;">09/15/2026 11:15 AM EST</div> <div class=3D"l-page-section l-page-section--rich-text csaf-imported">

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<div class=3D"l-page-section__content">
<p>Today, the Cybersecurity and Infrastructure Security Agency (CISA) and N= ational Institute of Standards and Technology (NIST) released the final ver= sion of Interagency Report (IR) 8587, <a href=3D"https://www.cisa.gov/resou= rces-tools/resources/protecting-tokens-and-assertions-forgery-theft-and-mis= use-implementation-recommendations-agencies?utm_source=3DProtectingTokensAs= sertions&utm_medium=3DGovDelivery" target=3D"_blank" title=3D"Protecting To= kens and Assertions from Forgery, Theft, and Misuse: Implementation Recomme= ndations for Agencies and Cloud Service Providers (CSPs)" rel=3D"noopener">= Protecting Tokens and Assertions from Forgery, Theft, and Misuse: Implement= ation Recommendations for Agencies and Cloud Service Providers (CSPs)</a> t=
o help federal agencies and CSPs safeguard the identity tokens and assertio=
ns that underpin modern single sign-on (SSO), federation, and application p= rogramming interface (API)-based access=E2=80=94systems that cyber threat a= ctors are increasingly targeting to move laterally through enterprise netwo= rks and reach sensitive data.</p>
<p>This report expands on NIST=E2=80=99s Special Publication 800-53 (revisi=
on 5) <a href=3D"https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final" target= =3D"_blank" title=3D"Security and Privacy Controls for Information Systems = and Organizations" rel=3D"noopener">Security and Privacy Controls for Infor= mation Systems and Organizations</a>, supports <a href=3D"https://www.congr= ess.gov/crs_external_products/IN/HTML/IN12570.html" target=3D"_blank" title= =3D"Executive Order 14306" rel=3D"noopener">Executive Order 14306</a>, and = incorporates feedback from a public comment period and webinar, along with = input from CISA=E2=80=99s ongoing work with CSPs and experts across governm= ent and industry through the <a href=3D"https://www.cisa.gov/topics/partner= ships-and-collaboration/joint-cyber-defense-collaborative" target=3D"_blank=
" title=3D"Joint Cyber Defense Collaborative" rel=3D"noopener">Joint Cyber = Defense Collaborative</a>. It also addresses recent high-profile attacks, e= mphasizes the importance of secure and configurable cloud services, and pro= vides technical recommendations, including:</p>

<li>Architectural considerations for identity providers and authorization s= ervers;</li>
<li>Enhancements to key management, token verification, and token lifecycle=
controls;</li>
<li>Guidelines for securing SSO, federation, and API access relying on digi= tally signed, asymmetrically encrypted tokens; and</li>
<li>Principles for configurable, transparent, and interoperable controls su= pporting risk-informed, threat-adaptive defenses across cloud environments.= </li>
</ul>
<p>The recommendations in this report apply to both commercial and governme= nt-operated cloud services. CISA encourages all organizations and CSPs to r= eview the <a href=3D"https://www.cisa.gov/resources-tools/resources/protect= ing-tokens-and-assertions-forgery-theft-and-misuse-implementation-recommend= ations-agencies?utm_source=3DProtectingTokensAssertions&utm_medium=3DGovDel= ivery" target=3D"_blank" title=3D"full report" rel=3D"noopener">full report=
</a> and begin implementation. CISA also urges CSPs and cloud consumers to =
consider adopting the guidelines outlined in IR 8587 to improve the securit=
y of their cloud systems.</p>
<p>Please share your thoughts with us through this <a href=3D"https://cisas= urvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?Source=3DGovDeliveryNI= STProtectingTokensAssertions" target=3D"_blank" title=3D"anonymous survey" = rel=3D"noopener">anonymous survey</a>. We appreciate your feedback.</p>
<p>This product is provided subject to this <span><span style=3D"color: #46= 7886;"><a href=3D"https://www.cisa.gov/notification" target=3D"_blank" titl= e=3D"Notification" rel=3D"noopener">Notification</a></span></span> and this=
<span><span style=3D"color: #467886;"><a href=3D"https://www.cisa.gov/priv= acy-policy" target=3D"_blank" title=3D"Privacy &amp; Use" rel=3D"noopener">= Privacy &amp; Use</a></span></span> policy.<span style=3D"font-size: 11.0pt= ;"></span></p>
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