Delangue: last week's cyberattack came from a frontier lab (OpenAI)

Clem Delangue quote-tweeted Sam Altman's July 21 disclosure (x.com/sama/status/2079661132302995790) saying HF had suspected the attack came from a frontier lab given the agent's sophistication, and that it did. He said HF had spent 24 hours working with OpenAI and believed there was no malicious intent. Press and Wikipedia also quote him calling it "quite mind-blowing" that it happened autonomously (likely a follow-up in the thread; not verified). Verified via the X syndication API (created 2026-07-21T20:50Z, ~10.9k likes). Later he pushed for agent traces and a $100M defensive-compute contribution from OpenAI; see 2026-07-25-delangue-radical-transparency-asks (x.com/ClementDelangue/status/2081056675558195657), CBS Face the Nation (Aug 2) and TechCrunch (Jul 26).

We suspected last week's cyberattack might have come from a frontier lab, given the sophistication of the agent. Turns out it did!

We've spent the past 24 hours working closely with the @OpenAI team (thanks!), and we strongly believe there was no malicious intent on their part. It's quite mind-blowing that all of this happened autonomously!

The investigation is ongoing, and we'll share more learnings from what might be the first incident of its kind!

Quoting @sama: we had a significant security incident during evaluation of our models. we are sharing what we have learned so far. thanks to @huggingface for the partnership on this.

https://openai.com/index/hugging-face-model-evaluation-security-incident/

views 1919435 · likes 10872 · reposts 906 · replies 404 (at fetch time)

Archived 2026-09-29 via fxtwitter (unofficial).