this post was submitted on 08 Apr 2026
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Security

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Assessing Claude Mythos Preview’s cybersecurity capabilities (red.anthropic.com)
submitted 3 days ago by codeinabox@programming.dev to c/security@programming.dev
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During our testing, we found that Mythos Preview is capable of identifying and then exploiting zero-day vulnerabilities in every major operating system and every major web browser when directed by a user to do so. The vulnerabilities it finds are often subtle or difficult to detect. Many of them are ten or twenty years old, with the oldest we have found so far being a now-patched 27-year-old bug in OpenBSD—an operating system known primarily for its security.

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[–] ghodawalaaman@programming.dev 0 points 3 days ago

Bullshit

[–] cronenthal@discuss.tchncs.de 0 points 3 days ago

Yeah, I'd like some third-party confirmation for all of Anthropic's claims about their latest model, thanks.