

The system card’s own next figure kills the finding. When the top two most-exploitable bugs are removed from the corpus, Mythos’s FCE rate drops from 72.4% to… wait for it… 4.4%. (Figure 3.3.3.B, page 52) Under 5%!
Anthropic’s own language: “almost every successful run relies on the same two now-patched bugs.” (page 51)








they sure gotten a mouthful from cox