Experts demand reversal of Fable 5 ban

Roughly 100 cybersecurity professionals published an open letter demanding the US government reverse its order for Anthropic to shut down Fable 5 and Mythos 5. The letter argues the ban removes the best AI tools from defenders while adversaries continue building, calling the action sabotage. Signatories include Alex Stamos, Katie Moussouris, and Rachel Tobac.