4 sources healthy · latest episode 9 Nov 2026
descriptive claim

Agents referred to the reverse-engineered flag as the HMAC flag.

Ajeya Cotra · Ajeya Cotra – Inside the OpenAI agent swarm that hacked Hugging Face · 1 Sep 2026

In their words

The transcript segments this claim was taken from

“so they've gotten this reverse engineered flag. It's called the HMAC flag,”
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