— Moneywise: According to Anthropic's security team, Mythos has already identified thousands of previously unknown, aka "zero-day," vulnerabilities across every major operating system and web browser. Among the discoveries: a flaw in OpenBSD — widely regarded as one of the most secure operating systems available — that had gone undetected for 27 years, and a bug in the video processor FFmpeg that survived five million automated security tests without being caught, per Quartz. What makes Mythos especially worrying to regulators is not just that it can find these flaws, but that it can link multiple vulnerabilities together autonomously to construct working exploits.