PHP Foundation reveals Anthropic's Claude cyber model scanned PHP, validated with OpenAI's Daybreak Red
saibharadwaj · x · 2026-10-23
Citing a PHP Foundation disclosure from yesterday, Hesamation reports that Anthropic's frontier cyber model (Claude Mythos) scanned PHP codebases earlier this year, and Anthropic also had access to OpenAI's Daybreak Red for validating exploits.
The poster argues that keeping frontier cyber-offense/defense models restricted to a handful of companies isn't working well for the internet's security.
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