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6 stories in the last 24h

CISA decides weekly vulnerability bulletin isn't necessary anymore

CISA will discontinue its weekly vulnerability bulletin on September 28, pushing users toward KEV, alerts, and CVE data under risk-based prioritization.

CISA announced its weekly vulnerability bulletin will stop on Monday, September 28, as part of a shift from static CVSS severity scores to a modern, risk-based approach detailed in a June Binding Operational Directive. The directive prioritizes federal remediation based on exposure, exploitation evidence, control granted by exploitation, and whether exploitation can be automated. CISA directs bulletin subscribers to rely instead on its Known Exploited Vulnerabilities catalog, cybersecurity alerts and advisories, and the CVE catalog, requiring users to enable those subscriptions in GovDelivery or Granicus to avoid missing critical notices.

The Register · Security · 14h agoPolicy & legal

AI agent authorization risks remain a gap in new NIST-CISA token security guidance

NIST and CISA release IR 8587 guidance on securing signed tokens, but AI agent authorization and delegation risks remain out of scope.

NIST, with CISA support, published 'Protecting Tokens and Assertions from Forgery, Theft, and Misuse' (NIST IR 8587), recommending continuous monitoring and tighter token lifecycle controls for SSO and API access. The guidance does not yet fully address AI agent identity, delegation chains, or prompt injection steering agents with valid tokens, and NIST says new or expanded standards are needed. Experts recommend treating AI agents as low-trust non-human identities, maintaining agent inventories, expiring credentials after task completion, and requiring human approval for high-risk actions. The report references shared-signal mechanisms like CAEP and RISC, and follows a May incident where a CISA contractor GitHub repository exposed AWS and GitHub tokens.

CSO Online · 18h agoAdvisory

CISA Releases Guidance on Deploying Cyber Decoys

CISA issued guidance on deploying honeypots, honeytokens, and decoy systems to detect adversaries and gather threat intelligence in critical infrastructure.

CISA released guidance on deploying cyber decoys, including lures, tripwires, decoy artifacts, honeytokens, and honeypots, within critical infrastructure organizations to complement Zero Trust models. The guidance outlines a three-phase operational process of preparation, execution, and understanding, advising decoys be placed where users rarely interact and configured to produce high-fidelity alerts. It aims to help defenders detect adversaries who use legitimate credentials, native tools, and living-off-the-land techniques, while enabling cost-effective threat intelligence collection.

SecurityWeek · 2h agoAdvisory

CISA and NIST Issue Guidance to Protect Cloud Identity Tokens

CISA and NIST published Interagency Report 8587 with voluntary guidance to harden cloud identity tokens against theft, forgery, and lateral movement.

CISA and NIST released NIST Interagency Report 8587 on September 15 with final voluntary guidance for federal agencies, cloud providers, and their customers on protecting SSO, federation, and API tokens. Requirements include one-hour maximum token lifetimes, 90-day signing key rotation for high-impact systems, hardware-backed key storage, explicit audience fields, and keeping tokens out of logs. The guidance was motivated by the 2020 ADFS compromise where forged SAML assertions bypassed MFA, and an incident where a leaked consumer signing key enabled token forgery and theft of 60,000+ emails from one agency. Nearly 250 public comments shaped the text, with input from Google, Microsoft, Okta, AWS, Oracle, IBM, HashiCorp, Wiz, and the OpenID Foundation via the Joint Cyber Defense Collaborative.

Infosecurity Magazine · 20h agoAdvisory

CISA promotes a fresh way to deter cyberattackers: Lie to them

CISA issued first-time guidance advising critical infrastructure operators to deploy honeypots, honeytokens, and decoys to detect and distract intruders.

CISA published 'Using Cyber Decoys to Strengthen Detection and Response,' a 22-page guide marking the agency's first guidance on decoys such as honeypots and honeytokens. Acting executive director Chris Butera described decoys as a low-cost, high-fidelity way to detect adversaries already inside networks, complementing zero-trust and assume-compromise approaches. The guidance covers decoy principles, definitions, deployment scenarios, and is aimed especially at resource-constrained critical infrastructure sectors.

CyberScoop · 14h agoAdvisory

Using Cyber Decoys to Strengthen Detection and Response

CISA released guidance on cyber decoys—tripwires, breadcrumbs, honeytokens—to help defenders detect adversaries using valid credentials and living-off-the-land techniques.

CISA published guidance to help defensive teams of varying maturity plan and implement cyber decoys—assets that mimic legitimate systems, accounts, or data, such as tripwires, breadcrumbs, and honeytokens—to detect adversaries using legitimate credentials and living-off-the-land techniques. The guidance frames decoys as complementing Zero Trust by producing high-fidelity alerts, reducing alert fatigue, and exposing post-compromise activity like discovery, lateral movement, and data access. It maps decoy operations to the MITRE Engage and MITRE ATT&CK frameworks with low-complexity implementation steps.

CISA Advisories · 22h agoAdvisory