A suspect is arrested for throwing a Molotov cocktail at Sam Altman’s home

San Francisco police arrested a person early Friday morning for allegedly attacking the home of the CEO of OpenAI Sam Altman They made threats outside the company’s headquarters, a company spokesperson confirmed to WIRED. OpenAI’s corporate security team sent a memo to employees about the incident on Friday.

“At approximately 3:45 a.m. PT, an unknown individual approached Sam’s home and threw an incendiary device toward the property. The device landed nearby and was extinguished. There were no injuries and only minor damage was reported,” the letter to employees said.

“Shortly after, security contacted an individual matching the description of the suspect outside MB1,” she said, referring to OpenAI’s headquarters in San Francisco’s Mission Bay neighborhood. “This individual made threatening statements about the building.”

OpenAI’s corporate security team told employees that it is cooperating with law enforcement in the investigation, and that employees may notice an increased police and security presence around the office on Friday. The security team said the company’s offices remained open, but employees were advised “not to allow anyone into the building.”

“Early this morning, someone threw a Molotov cocktail at Sam Altman’s home and also made threats at our headquarters in San Francisco. Fortunately, no one was hurt,” Kayla Wood, an OpenAI spokeswoman, said in an email to WIRED. “We greatly appreciate how quickly SFPD responded and the support the city is providing to help keep our employees safe. This individual is in custody, and we are assisting law enforcement with their investigation.”

The San Francisco Police Department did not immediately respond to a request for comment.

This is the latest incident in which the OpenAI office and its staff have been threatened. In November of last year, OpenAI has closed its San Francisco office After an alleged threat from an activist. In February 2025, the protesters He was arrested for locking the front doors To the OpenAI office.