Security Researchers Argue Fable 5 Export Ban Harms US Cyber Defense

Summary

In the wake of the June 12 US government directive forcing Anthropic to suspend Claude Fable 5 and Mythos 5 for foreign nationals, the security-research community is pushing back on the directive's technical premise. Simon Willison surfaced analysis from vulnerability-disclosure expert Kate Moussouris, who confirmed that the "jailbreak" cited to justify the ban amounted to asking the model to "fix this code" on deliberately vulnerable software. Moussouris argues this is exactly the capability de