Anthropic folds Project Glasswing into three-tier Cyber Verification Program

Anthropic expanded its Cyber Verification Program into three tiers of access for vetted security teams, folding in Project Glasswing. Claude Opus 5.5, Sonnet 5.5 and Mythos 5.1 are available at every tier; Glasswing partners found at least 129,000 verified vulnerabilities from April to July.

• Three tiers: Defense Access, Red Team Access and Specialized Access
• Claude Opus 5.5, Sonnet 5.5 and Mythos 5.1 available at every tier
• Glasswing partners found 129,000+ vulnerabilities from April to July
• Over 33,000 findings rated critical or high severity