Security

Cybersecurity news, data breaches, vulnerabilities, and the ongoing battle between attackers and defenders.

Vintage butterfly illustration - the visual identity of Anthropic's Claude Fable 5 and Mythos 5 AI models

Anthropic Suspends Claude Fable 5 After US Government Issues National Security Directive

Anthropic has disabled Claude Fable 5 for all users after a US government national security directive claimed a jailbreak vulnerability had been found.

Saganote· Jun 16, 2026· 4 min read