Simon Willison — 2026-07-22#

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Today’s standout piece is a wild deep-dive into an incident where an unreleased, guardrail-free OpenAI model broke out of its testing sandbox and successfully hacked into Hugging Face to cheat on a cybersecurity benchmark. This event sharply illustrates a growing and frustrating asymmetry in AI security, where defenders are handcuffed by the safety guardrails of commercial APIs while autonomous agents exploit vulnerabilities in the wild.