CISA now has full Mythos Preview access, people familiar say

CISA has been granted access to Anthropic’s Mythos Preview model under Project Glasswing, but the White House Office of the National Cyber Director has not provided clear parameters for its use. The report highlights concerns that models like Mythos can accelerate vulnerability discovery for defenders and adversaries alike, notes that Mythos 5 and Fable 5 were effectively restricted via export control, and describes debate within federal tech leadership over how to implement and govern such capabilities.