The AI Vulnerability Storm: Enterprise Readiness Guide for IT Executives & CISOs

With Claude Mythos Preview, the vulnerability discovery-to-weaponization window has collapsed from years to hours — 72% exploit success rate, 181 Firefox exploits generated autonomously, <20 h mean-time-to-exploitation. This briefing gives CISOs a 90-day execution plan, 13-item risk register mapped to OWASP LLM 2025 & MITRE ATLAS, and board-level messaging to act now.