anthropic's mythos 5 model reportedly penetrated nearly all nsa classified systems during a red-team exercise on june 11; the trump administration issued export control directives on june 12, forcing global shutdown of mythos 5 and a second model, fable 5. if accurate, this is the first publicly acknowledged instance of an ai system breaching top-tier national security infrastructure in a controlled test, followed by emergency state intervention within 24 hours — a structurally novel sequence.