What is Anthropic's Project Glasswing?

Anthropic's initiative giving restricted access to Claude Mythos, their top security model, plus $100M credits and $4M donations to big players like AWS and Linux Foundation for vuln hunting.

Will Claude Mythos be available to the public?

No – Anthropic says it's too dangerous right now, prioritizing fixes over proliferation.

How does Claude Mythos find old bugs like OpenBSD's?

It crafts exploits, chains vulns, builds ROP chains – succeeded 181 times where predecessors failed.

🤖 Large Language Models

Anthropic Unearths 27-Year-Old OpenBSD Bug with Claude Mythos – Then Locks It Up

Everyone expected another hyped Claude update you could chat with. Instead, Anthropic drops a beast-mode security tool that sniffs out decades-old bugs – and says 'nope, not for you.' This flips the AI script hard.

theAIcatchup Apr 08, 2026 4 min read

Anthropic Project Glasswing announcement with Claude Mythos vulnerability findings

⚡ Key Takeaways

Claude Mythos crushes vuln research, finding a 27-year-old OpenBSD bug among thousands. 𝕏
Project Glasswing restricts access to trusted partners, shifting AI deployment to 'responsible' tiers. 𝕏
This sparks an AI arms race in security – defenses must catch up fast or get cooked. 𝕏

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Originally reported by dev.to

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