CriticalRansomware
Anthropic Opens Claude Access to Red Teams and Verified Cyber Defenders With Reduced Restrictions
Cyber Security News·Source published ·1 min read
What happened?
Anthropic has expanded its Cyber Verification Program, giving verified security professionals access to advanced Claude models with fewer cybersecurity restrictions. Announced on October 6, 2026, the update introduces three access tiers covering defensive research, authorized penetration testing, and testing of systems where failures could threaten lives or disrupt markets. The program includes Claude Opus 5.5, Claude Sonnet 5.5, Claude Mythos 5.1, and future models.
Key details
- Anthropic expanded its Cyber Verification Program with three access tiers for verified security professionals.
- The program includes Claude Opus 5.5, Claude Sonnet 5.5, Claude Mythos 5.1, and future models.
- Three access tiers were introduced: Defense Access, Red Team Access, and Specialized Access.
- Defense Access covers security operations, incident response, malware reverse engineering, and vulnerability analysis.
- Red Team Access adds authorized penetration testing and red-teaming for organizations.
- Specialized Access has the fewest cyber blocks and serves a limited group authorized to test critical infrastructure.
- Public access blocked all 50 CyScenarioBench tasks at the first prompt.
Affected
- Verified security professionals and organizations can access advanced Claude models.
- Eligible applicants for Defense Access include company security teams, universities, government bodies, hospitals, utilities, smaller security firms, and open-source maintainers.
- Specialized Access is for a limited group authorized to test critical infrastructure.
- Amazon Bedrock access requires EFS eligibility.
Summarised by SecOraLens from Cyber Security News. Always read the original source before acting. How SecOraLens verifies advisories.