Anthropic's Mythos was being accessed by unauthorized users on the same day it was announced. The trust boundary of a gated frontier model is not the lab's perimeter.

When Anthropic announced Claude Mythos and Project Glasswing earlier this month, the framing was careful: a gated research preview restricted to allow-listed partners (Mozilla, Microsoft, Apple, Cloudflare, AWS, Google, the Linux Foundation, JPMorgan), justified as defensive cybersecurity. Patch the