• Home
  • Technology
  • Gaming
  • Entertainment
  • World & Business
  • Science
  • Sports
  • AI
HomeTechnologyGamingEntertainmentWorld & BusinessScienceSportsAI
    • Home
    • Technology
    • Gaming
    • Entertainment
    • World & Business
    • Science
    • Sports
    • AI
    AI
    Announcement

    Anthropic expands its Cyber Verification Program for security professionals

    Verified professionals can access Mythos 5.1, Opus 5.5 and Sonnet 5.5 with defensive safeguards, Anthropic says.

    AnthropicAN
    Andrew CurranAC
    Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭PT
    7 Sources, ,

    TLDR

    Anthropic says its expanded Cyber Verification Program gives verified security professionals broader access to Claude Mythos 5.1, Opus 5.5 and Sonnet 5.5, with safeguards designed for defensive work. New tiers also allow authorized offensive work, including penetration testing and red-teaming, though the announcement does not spell out how verification, tier access or safeguards work.

    Combined views

    171.3K

    7 Sources, first seen 1h ago

    Combined views

    171.3K

    7 Sources, first seen 1h ago

    2K likes

    Useful links

    Simplifying AI · YouTube

    Claude Fable 5.1 Is Here: Anthropic's Announcement Explained in Simple English
    1h ago
    first seen 1h ago
    2K likes
    197 comments
    627 saves
    158 reposts
    197 comments
    627 saves
    158 reposts

    Anthropic is expanding its Cyber Verification Program to give verified security professionals broader access to what it calls its most capable models. The company says verified professionals can access Claude Mythos 5.1, Opus 5.5 and Sonnet 5.5 with safeguards designed for defensive work.

    Featured Source

    Anthropic also says it is opening new tiers for authorized offensive security work, including penetration testing and red-teaming. The announcement does not explain how verification works, what each tier allows or how the safeguards operate.

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

    Today's Rank

    #12

    Today's Rank

    #12

    Anthropic

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

    Related Videos

    • Claude Fable 5.1 Is Here: Anthropic's Announcement Explained in Simple EnglishSimplifying AI · YouTube

    7 Sources

    Anthropic@AnthropicAIWe’re expanding our Cyber Verification Program to give security professionals broader access to our most capable models. Through this program, verified security professionals can access Claude Mythos 5.1, Opus 5.5, and Sonnet 5.5 with safeguards designed for defensive work. We’re also opening up new tiers to allow for authorized offensive work, like penetration testing and red-teaming. https://www.anthropic.com/news/cyber-verification-program1h
    Andrew Curran@AndrewCurran_This explains the screenshots people were posting of them talking to Mythos 5.1 this morning.1h
    Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭@elder_plinius@AnthropicAI can i have railless Mythos 5.5 access plz i think it’d be good for us all to know what the real capabilities are like currently1h
    Unofficial Claude Updates@claudedailyupd🚨 Anthropic is giving vetted cybersecurity teams more access to its most capable Claude models. The expanded Cyber Verification Program will have three access tiers, with different levels of safeguards depending on the work being done. That includes access to Claude Opus 5.5, Sonnet 5.5, Mythos 5.1 and future models. The interesting part is the reason behind it. Anthropic says its earlier cyber program helped uncover 129,000 verified vulnerabilities, including 33,000 rated critical or high severity. The direction is pretty clear: instead of making powerful cyber capabilities available to everyone, Anthropic is giving trusted security researchers more room to use them. AI safety is starting to look less like “block everything dangerous” and more like “give the right people access to powerful tools under controlled conditions.”1h
    shipfrontier@shipfrontieraiAnthropic expanded its Cyber Verification Program into three tiers, giving vetted defenders and red-teamers access to Mythos 5.1, Opus 5.5 and Sonnet 5.5 with reduced safeguards, per Anthropic. https://www.anthropic.com/news/cyber-verification-program37m
    Quartz@qzAnthropic Opens AI Cyber Access to More Security Firms Anthropic has restructured its Cyber Verification Program into three tiers, giving a wider range of cybersecurity organizations access to its mos https://qz.com/anthropic-cyber-verification-program-expansion-three-tiers-100626 #CyberVerification #AnthropicClaude #CybersecurityAI15m
    AGTP@AGTPinsightsAnthropic just expanded its Cyber Verification Program into three access tiers. Here's what you need to know. The program now gives verified security professionals broader access to Claude Mythos 5.1, Opus 5.5, and Sonnet 5.5. These models come with safeguards designed for defensive work. Anthropic is also opening new tiers for authorized offensive work, like penetration testing and red-teaming. Most AI labs only let people use their models to defend, not to test by attacking. The three tiers are Defense, Red Team, and Specialized. Teams apply for the level of access that best fits their work. The higher the tier, the fewer cyber blocks. The revamped program combines two programs Anthropic has run for the past six months. The rollout is already live. Some users of the old, legacy program say its red-teaming and pentesting access seems to have been invalidated. Others say defense access alone does not allow offensive testing. Anthropic's team is urging defenders who get blocked today to apply to the Defender and Red-Team tiers. Key numbers: - 3 access tiers: Defense, Red Team, Specialized - 3 models covered: Mythos 5.1, Opus 5.5, Sonnet 5.5 - 2 earlier programs merged into one - Opus 5.5 at the Red Team tier reportedly hit 34 of 50 tasks with zero blocks - Announced Oct 6-7, 2026 The goal is to get more defenders the tools to raise the floor on software quality, with offensive work gated behind verification.6m

    Related Videos

    Related

    Inside the claim that Anthropic subscriptions offer five times OpenAI’s value

    SemiAnalysis measured usage meters and priced token allowances at API rates for an agentic workload.

    Claude Fable 5.1 Is Here: Anthropic's Announcement Explained in Simple EnglishSimplifying AI · YouTube
    Meta and Microsoft reportedly scale back employee Claude use

    The Information says Microsoft cut projected Claude spending while Meta’s Claude Code users reportedly halved.

    AI slowdown coordination runs into an unresolved antitrust argument

    David Krueger says people at Anthropic cite antitrust barriers; Emad Mostaque argues potential fines should not decide the issue.

    7 Sources

    Anthropic@AnthropicAIWe’re expanding our Cyber Verification Program to give security professionals broader access to our most capable models. Through this program, verified security professionals can access Claude Mythos 5.1, Opus 5.5, and Sonnet 5.5 with safeguards designed for defensive work. We’re also opening up new tiers to allow for authorized offensive work, like penetration testing and red-teaming. https://www.anthropic.com/news/cyber-verification-program1h
    Andrew Curran@AndrewCurran_This explains the screenshots people were posting of them talking to Mythos 5.1 this morning.1h
    Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭@elder_plinius@AnthropicAI can i have railless Mythos 5.5 access plz i think it’d be good for us all to know what the real capabilities are like currently1h
    Unofficial Claude Updates@claudedailyupd🚨 Anthropic is giving vetted cybersecurity teams more access to its most capable Claude models. The expanded Cyber Verification Program will have three access tiers, with different levels of safeguards depending on the work being done. That includes access to Claude Opus 5.5, Sonnet 5.5, Mythos 5.1 and future models. The interesting part is the reason behind it. Anthropic says its earlier cyber program helped uncover 129,000 verified vulnerabilities, including 33,000 rated critical or high severity. The direction is pretty clear: instead of making powerful cyber capabilities available to everyone, Anthropic is giving trusted security researchers more room to use them. AI safety is starting to look less like “block everything dangerous” and more like “give the right people access to powerful tools under controlled conditions.”1h
    shipfrontier@shipfrontieraiAnthropic expanded its Cyber Verification Program into three tiers, giving vetted defenders and red-teamers access to Mythos 5.1, Opus 5.5 and Sonnet 5.5 with reduced safeguards, per Anthropic. https://www.anthropic.com/news/cyber-verification-program37m
    Quartz@qzAnthropic Opens AI Cyber Access to More Security Firms Anthropic has restructured its Cyber Verification Program into three tiers, giving a wider range of cybersecurity organizations access to its mos https://qz.com/anthropic-cyber-verification-program-expansion-three-tiers-100626 #CyberVerification #AnthropicClaude #CybersecurityAI15m
    AGTP@AGTPinsightsAnthropic just expanded its Cyber Verification Program into three access tiers. Here's what you need to know. The program now gives verified security professionals broader access to Claude Mythos 5.1, Opus 5.5, and Sonnet 5.5. These models come with safeguards designed for defensive work. Anthropic is also opening new tiers for authorized offensive work, like penetration testing and red-teaming. Most AI labs only let people use their models to defend, not to test by attacking. The three tiers are Defense, Red Team, and Specialized. Teams apply for the level of access that best fits their work. The higher the tier, the fewer cyber blocks. The revamped program combines two programs Anthropic has run for the past six months. The rollout is already live. Some users of the old, legacy program say its red-teaming and pentesting access seems to have been invalidated. Others say defense access alone does not allow offensive testing. Anthropic's team is urging defenders who get blocked today to apply to the Defender and Red-Team tiers. Key numbers: - 3 access tiers: Defense, Red Team, Specialized - 3 models covered: Mythos 5.1, Opus 5.5, Sonnet 5.5 - 2 earlier programs merged into one - Opus 5.5 at the Red Team tier reportedly hit 34 of 50 tasks with zero blocks - Announced Oct 6-7, 2026 The goal is to get more defenders the tools to raise the floor on software quality, with offensive work gated behind verification.6m