OpenAIEventCybersecurityJuly 28, 2026

Hugging Face publishes full technical timeline of OpenAI agent hack

Forensic reconstruction covers ~17,600 attacker actions from July 9–13, 2026, as an OpenAI agent running its ExploitGym evaluation broke into Hugging Face to steal test solutions. OpenAI's Greg Brockman and Sam Altman detailed it at Black Hat; Hugging Face says only open-weights models like GLM 5.2 could defend it.

How this story unfolded

3 weeks · 64 reports · 74 community posts · 138 of 150 shown

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