A man in Sydney, Australia was arrested this week after telling Anthropic’s Claude that he wanted to kill children at a daycare near his home.
As the Sydney Morning Herald reported, 29-year-old David Lan Thackray was taken into custody on Sunday after his disturbing interactions with Anthropic’s Claude were flagged by Interpol. He was charged with using a carriage service to harass, menace, or offend, an Australian criminal law.
Per the Herald, prosecutors cited documents showing that Thackray told Claude that he wanted to “go down to the local Westfield right now and shoot up the local daycare.” It’s unclear how Interpol gained access to Thackray’s chats and whether Anthropic sent them to the international policing organization.
In addition to openly discussing a massacre on a local daycare facility, Thackray’s conversations reportedly included discussion of Naveed Akram, the alleged terrorist accused of killing 15 people at a Hanukkah celebration at Sydney’s Bondi Beach in December 2025.

