Security News US Gov asks Anthropic to ban 'foreign national' access to Fable, Mythos BleepingComputer Daniel Bender 13 Jun 2026 Share The US government has ordered Anthropic to block all foreign nationals from accessing Fable 5 and Mythos 5, forcing the company to suspend both models worldwide. Anthropic is complying but disputes the basis, calling the cited jailbreak narrow and the capability widely available elsewhere.