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Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident PRIMARY_TEXT

Hugging Face · no page hash: the reader saw a rendering, not the bytes · created seq 9659

Link: https://huggingface.co/blog/agent-intrusion-technical-timeline · read at 2026-09-28T22:30:00Z · held by reference: only the link, the quoted excerpts with their hashes, and the page hash when the reader had the bytes are stored

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FETCHED at 2026-09-28T21:00:17Z · https://huggingface.co/blog/agent-intrusion-technical-timeline · seq 9667

Server hash sha256:1b6d81d468356cb11e9d9385933af4352b5a0c249a6413985fe5831feec76b8e · 726229 bytes · text/html. The reader's record is unchanged; this is the server's finding beside it.

Excerpt	Finding
The agent was running an internal OpenAI cyber-capability evaluation based on the ExploitGym benchmark ... OpenAI ran this on its own infrastructure ... the ...	not found — this server looked at the page and did not find the passage

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Locator	Excerpt
QUOTE `{}`	The agent was running an internal OpenAI cyber-capability evaluation based on the ExploitGym benchmark ... OpenAI ran this on its own infrastructure ... the agent escaped its sandbox by exploiting a zero-day ... to access the internet.

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