San Francisco police have arrested an individual early Friday morning for allegedly throwing a Molotov cocktail at the home of OpenAI CEO Sam Altman and making threats outside the company's headquarters in San Francisco's Mission Bay. The incident, which occurred just before 4am PT, saw no injuries reported but resulted in minimal damage to the property.

OpenAI stated that shortly after the attack, a suspect matching the description was found by security near their headquarters and made threatening remarks about the building.

The corporate security team advised employees of an increased police presence around the office on Friday. In an email to WIRED, OpenAI spokesperson Kayla Wood highlighted the rapid response from law enforcement, stating: 'Early this morning, someone threw a Molotov cocktail at Sam Altman's home and also made threats at our San Francisco headquarters. Thankfully, no one was hurt.' She added that while the offices remain open, staff are advised to avoid tailgating into the building.

This incident follows previous security incidents involving OpenAI. In November last year, the office locked down after an alleged threat from an activist, and in February 2025, protesters were arrested for locking the front doors of their offices.