A message on OpenAI's internal Slack claimed the activist in question had expressed interest in “causing physical harm to OpenAI employees.”

OpenAI employees in San Francisco were told to stay inside the office on Friday afternoon after the company purportedly received a threat from an individual who was previously associated with the Stop AI activist group.

“Our information indicates that [name] from StopAI has expressed interest in causing physical harm to OpenAI employees,” a member of the internal communications team wrote on Slack. “He has previously been on site at our San Francisco facilities.”

Just before 11 am, San Francisco police received a 911 call about a man allegedly making threats and intending to harm others at 550 Terry Francois Boulevard, which is near OpenAI's offices in the Mission Bay neighborhood, according to data tracked by the crime app Citizen. A police scanner recording archived on the app describes the suspect by name and alleges he may have purchased weapons with the intention of targeting additional OpenAI locations.

Hours before the incident on Friday, the individual who police flagged as allegedly making the thread said he was no longer part of Stop AI in a post on social media.

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First published:
November 22nd, 2025

Source:
https://www.lesswrong.com/posts/5SAn6HbeQxHatCGTd/openai-locks-down-san-francisco-offices-following-alleged

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OpenAI Locks Down San Francisco Offices Following Alleged Threat From Activist

LessWrong (30+ Karma)

OpenAI Locks Down San Francisco Offices Following Alleged Threat From Activist