Stop AI Cofounder Threatens OpenAI Offices
Sam Kirchner, a cofounder of Bay Area activist group Stop AI, assaulted a member, renounced nonviolence, and disappeared on Nov. 21, 2025, prompting a bench warrant and police warnings that he may be armed. OpenAI locked down its San Francisco offices after receiving threat reports, and Stop AI expelled Kirchner while notifying major AI developers. The incident highlights radicalization within AI-doomer activism and triggered heightened security among AI companies.
Key Points
- 1Reports: Sam Kirchner assaulted a member, renounced nonviolence, and disappeared Nov 21, 2025.
- 2Threats prompted OpenAI to lock down San Francisco offices and drew police issuance of a bench warrant.
- 3Highlights radicalization risks and the need for improved threat monitoring and security at AI organizations.
Scoring Rationale
High immediacy and confirmed reporting across outlets, with direct implications for AI company security and public safety.
Sources
Public references used for this report.
Practice interview problems based on real data
1,625 SQL & Python problems across 15 industry datasets — the exact type of data you work with.
Try 250 free problems
