Anthropic has notified law enforcement after its security systems detected written threats of violence in a conversation with its Claude AI model. The incident occurred in Florida, where 30-year-old Carly Michelle Heller has been charged with making written threats of violence.
According to investigators, Heller stated her intention to carry out a shooting at the Lee County Sheriff's Office and indicated that she had already acquired a weapon. The messages were first caught by Anthropic's automated security systems, then reviewed by a human specialist before the company contacted authorities.
Deputies identified Heller and arrested her at her residence without incident. Sheriff Carmine Marceno explained that the woman had been using Claude as a diary, writing out her plans in detail. The conversation contained specific details about the intended target and the acquisition of a firearm, which triggered the escalation.
Heller has been charged with a second-degree felony under Florida law. Her guilt will be determined in court proceedings. The case illustrates the limits of treating AI chats as private, as Anthropic applied automated detection, human review, and direct reporting to police when concrete threats emerged.

