Cloudflare tested Anthropic's security-specialized Mythos Preview model against their own infrastructure under Project Glasswing. Mythos can chain low-severity bugs into working exploits, demonstrating reasoning comparable to senior security researchers — but with inconsistent safeguards and significant triage overhead.
Microsoft says AI is reshaping how the Microsoft Security Response Center discovers, validates, and remediates vulnerabilities. The April 7 post ties that work to Claude Mythos Preview testing, Project Glasswing, and eventual customer access through Microsoft Foundry.
A Hacker News thread drew attention to Anthropic's Project Glasswing, a new security coalition built around Claude Mythos 2 Preview. Anthropic says the effort combines major vendors, $100M in usage credits, and direct support for open-source defenders to harden critical software before frontier vulnerability-research capabilities spread more broadly.
A Hacker News thread amplified Nicholas Carlini's report that Claude Code helped uncover remotely exploitable Linux kernel bugs, including one introduced in 2003. The case suggests frontier coding models are becoming useful vulnerability discovery tools even before they become strong automated exploit builders.