Microsoft is urging a fundamental shift in cyber defense strategies, as traditional methods are no longer effective in the face of AI-driven vulnerability discovery. A senior security manager at the company emphasizes the need to transition from reactive patching to building resilient systems that can withstand increasingly rapid and scalable exploit development. This change is necessary because AI tools have significantly reduced the cost and time required for vulnerability discovery, making it easier for attackers to identify and exploit weaknesses. According to David Weston, a group manager in the Windows team, the old approach to vulnerability remediation is no longer sufficient1. As a result, organizations must reassess their security posture and prioritize proactive measures to stay ahead of emerging threats. This new approach matters to security practitioners because it requires a thorough reevaluation of their existing defense strategies to ensure they are equipped to handle the evolving threat landscape.