During the DARPA AI Cyber Challenge, autonomous AI systems uncovered 18 zero-day vulnerabilities and patched 61% of them in 45 minutes. Without any human input. Zero-days are the most dangerous class of software vulnerability. Attackers prize them because they're unknown to defenders. A human security team might take weeks or months to find one, if they find it at all. An AI did it 18 times in under an hour. And then patched most of them. This is a preview of where both offensive and defensive cybersecurity are heading. The same capability that can find vulnerabilities and patch them can find vulnerabilities and exploit them. The question is who gets there first, and whose AI is faster. The DARPA AI Cyber Challenge was a proof of concept. The nation-state actors who've been watching that competition already have teams working on the offensive version. Security teams that don't have AI in their stack aren't just behind. They're playing a fundamentally different game than the one being played against them.