Anthropic’s Mythos AI broke into almost all NSA classified systems in hours

Anthropic’s Mythos AI broke into almost all NSA classified systems in hours Pierluigi Paganini June 22, 2026 Senate testimony claims Anthropic’s Mythos AI breached NSA and Cyber Command systems in hours, prompting a U.S.-ordered shutdown. On June 12, the Trump administration directed Anthropic to restrict access to Fable 5 and Mythos 5, its two most […]