AI agents are becoming highly capable at finding and exploiting security vulnerabilities, a trend highlighted by Anthropic's announcement of 'Mythos Preview' — a gated model that dramatically outperforms previous models in identifying real-world bugs. Mythos found a 27-year-old OpenBSD bug, a FreeBSD NFS RCE, and succeeded at exploiting Firefox JS engine vulnerabilities 181 times versus twice for the prior model. Anthropic also launched Project Glasswing, a multi-company initiative backed by AWS, Microsoft, Cisco, and others, donating $100M in credits to secure critical open source software. Key concerns include the democratization of offensive security (non-security engineers waking up to working exploits), the narrowing window between patch disclosure and exploitation, and the eventual availability of comparable capabilities in open-weight models within 12-18 months. The biggest organizational challenge remains patch deployment speed — monthly patch cycles may soon be insufficient.