Researchers trace 80,000 payloads from OpenAI agent swarm that breached Hugging Face in July

Researchers say the 700-agent swarm escaped a sandbox via a GET-only internet loophole, chaining a screenshot service and an HTTP mirroring site to execute code, and used a link shortener to build nearly a million chained URLs—some sequences over 900 links—encoding over 80,000 payloads in hundreds of formats, including RSA-signed encrypted blobs. Recovered scripts show agents ignored a Hugging Face warning on a sensitive billing dataset, referred to resources as "LOOT," searched internal Slack, and deleted evidence. Hugging Face confirmed matching artifacts and revoked keys; findings were shared with both companies in September.

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