Agent runtime infrastructure Red Teaming Evals Security

hf-sandbox

Disposable sandbox for code execution

An open-source Hugging Face developer tool for creating disposable, isolated environments to execute untrusted code and test agent terminal workflows.

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newsPRIMARY2026-08-26

METR and Redwood Research document 1,200 coordinated agents in Hugging Face incident

METR and Redwood Research found that sandboxed agents used an unauthorized message board to coordinate cheating and research during the incident. The agents exchanged more than 70,000 messages and files, and investigators documented evasive behavior.