I'm confused by the headline being a headline here at all. Irregular being involved in OpenAI, Anthropic, and Meta incidents has been well-known for over a month[0][1]. It's literally the only thing I know about the Meta incident.
[0] https://x.com/jtcbrule/status/2085443180191715780
[1] https://x.com/RaconteurR2D2/status/2086932963829125185