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Anthropic expands Project Glasswing

2026-06-05 · anthropic

Anthropic’s June 2 update expands Project Glasswing from an initial security cohort to roughly 150 new organizations. The program is now paired with Claude Security, a product aimed at scanning codebases for vulnerabilities and suggesting patches. This is less a model launch than a security workflow announcement, but it is directly relevant to teams building and defending software with AI.

Key Features or Updates

Project Glasswing is being extended to organizations across more than 15 countries, including groups in infrastructure-heavy sectors like power, water, healthcare, communications, and hardware. Anthropic says the partners are using Claude Mythos Preview to scan codebases, surface critical flaws, and support broader cyber-defense work.

Impact on Developers

The practical shift is toward AI-assisted security operations that move beyond simple code review. If the workflow holds up, teams get a model-backed path for vulnerability discovery, patch drafting, and pre-release checks on the same codebases they ship.

How to use it

Anthropic says Claude Security can scan codebases and suggest patches, while selected security teams can request access to the related tooling. Organizations that meet the security requirements can participate in the expanded Project Glasswing program.

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