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Anthropic’s “too dangerous” AI was accessed by guessing the URL

Ellsworth Toohey
Apr 23, 2026
∙ Paid

Mijansk786/shutterstock.com

That Linux kernel bug Anthropic highlighted as proof of Mythos’s hacking prowess? Researcher Devansh found it was actually discovered by Claude Opus 4.6 — Anthropic’s publicly available model — not by the restricted Mythos. The find is buried in a 244-page system card that independent researchers have been dissecting since the…

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