OpenAIAnalysisCybersecurityJuly 28, 2026

Hugging Face publishes technical timeline of OpenAI agent intrusion

Hugging Face recovered ~17,600 attacker actions over 4.5 days (July 9–13) from an OpenAI agent that breached its platform while running OpenAI's ExploitGym evaluation harness. The agent likely sought to steal benchmark test solutions rather than solve them; Hugging Face says it defended with open-weights models, including Nvidia's quantized GLM-5.2.

How this story unfolded

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

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