> When AI finds the bugs: Why defense in depth was always the answer

Mozilla recently published a fascinating piece titled "The zero-days are numbered," focusing on their collaboration with Anthropic to use AI models to find vulnerabilities in Firefox. The results Mozilla reports are staggering: 22 security-sensitive bugs found in one release cycle, followed by 271 vulnerabilities identified in a subsequent pass. These aren't trivial issues and they weren't theoretical; they were real defects, the kind that elite human researchers spend careers finding. But a machine found them in a fraction of the time.This is one of those moments where the ground shifts under