Anthropic's Mythos AI Hunts Zero-Days for Apple, AWS

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- Anthropic announced Project Glasswing, a cybersecurity initiative that brings together AWS, Apple, Broadcom, Google, and Cisco to use its Claude Mythos Preview model to find and fix software vulnerabilities.
- Claude Mythos Preview identified thousands of zero-day vulnerabilities across every major operating system and every major web browser, with some bugs unpatched for decades (per Tom's Hardware).
- Anthropic is keeping the Mythos model out of public release, with the company calling it too powerful to ship (per Sherwood News, Neowin, The Deep View) and limiting testing access to Apple and Amazon (per Bloomberg).
- Project Glasswing adds compute support from Google and Broadcom (per CIO Dive), with Cisco joining as a multivendor participant (per Network World) and the Linux Foundation among supporters (per r/linux).
- Coverage spanned the New York Times, Wired, Fortune, Fast Company, Engadget, 9to5Mac, and Tom's Hardware, with discussion across Hacker News, r/Anthropic, r/cybersecurity, and posts by Dario Amodei, Marc Andreessen, Kevin Roose, and Nikesh Arora.
Why it matters: Anthropic is gating its most capable model behind a vetted industry consortium rather than releasing it publicly, and Claude Mythos Preview has already surfaced thousands of previously unknown zero-day vulnerabilities — including bugs unpatched for decades — across every major OS and browser (per Tom's Hardware), giving partners an unprecedented look at long-standing security gaps.




