Apple M5 Exploit: Claude Mythos Bypassed macOS Memory Integrity Enforcement in 5 Days
A three-person security team built the first public Apple M5 exploit in roughly five days, going from an ordinary unprivileged account to a full root shell on macOS while Apple’s newest hardware defense was switched on. They did it with help from Claude Mythos Preview, Anthropic’s gated frontier model. The target was Memory Integrity Enforcement (MIE), a defense Apple spent about five years, and by the researchers’ own estimate billions of dollars, building. That timeline is the headline, and it deserves scrutiny rather than panic. A lot of the viral framing around this story is wrong. Mythos did not autonomously crack Apple’s defenses, MIE was not “broken,” and the widely […]
