Anthropic announced a three-tier cyber-verification program on October 9, 2026, opening Mythos access to security professionals through Defense Access, Red Team Access and Specialized Access. Specialized Access requires government approval and replaces Project Glasswing, making this the first major expansion since the June shutdown. The argument now turns on whether wider access raises risk, with Nathan Lambert calling an open-weight Mythos an acceleration rather than a step change and Jamie Dimon saying cyber risk rose tenfold.