From the source
Anthropic expanded its Cyber Verification Program (CVP) into three access tiers—Defense Access, Red Team Access, and Specialized Access—each with different verification requirements and security controls.
The program provides qualifying security professionals access to advanced models including Claude Opus 5.5, Claude Sonnet 5.5, and Claude Mythos 5.1, with reduced blocking classifiers for cyber work.
Existing Project Glasswing members will transition to the Specialized Access tier without needing reapproval for current models.
