Proof of Concept: Mythos Clouds the Future of Cyber Defense

Agentic AI , Artificial Intelligence & Machine Learning , Governance & Risk Management Proof of Concept: Mythos Clouds the Future of Cyber Defense SANS Institute and Cloud Security Alliance Leaders on the Coming Vulnerability Storm Anna Delaney (annamadeline) • April 16, 2026     Share Post Share Credit Eligible Get Permission Clockwise, from top left: Anna Delaney, Gadi Evron, Tom Field and Rob Lee The storm clouds of Claude Mythos could upend cyber defenses by compressing time to exploit software flaws from months to hours. Vulnerability management, risk models and security operations must change now, said Rob Lee, chief AI officer and chief of research at SANS Institute, and Gadi Evron, CISO-in-residence for AI at the Cloud Security Alliance. See Also: Defending Identity in the Age of AI Attacks Last week, Anthropic released a preview version of its new AI-driven bug finder to 40 tech and cybersecurity vendors to help the industry prepare for a storm of vulnerabilities that could be rapidly exploited by cyberattackers. The Cloud Security Alliance warned in its new report, The AI Vulnerability Storm: Building a Mythos-ready Security Program, that defenders must make immediate changes to the way they manage risk. "Finding a vulnerability is a lot harder than most people realize," Lee said. "It would take months in some cases." Evron said security organizations must now respond at "machine speed" and discard long-standing assumptions about patch timelines, exploit windows and risk tolerance. In this video interview with ISMG, Lee and Evron also discussed: How Mythos will accelerate vulnerability discovery and exploit timelines; Why traditional vulnerability management and patch cycles are broken; What CISOs must change now to build a Mythos-ready security program. Lee leads AI and research at SANS Institute, where he develops frameworks for secure AI adoption, including Sunlight AI. A pioneer in digital forensics and incident response, he helped shape digital forensics, incident response and cyberthreat intelligence practices. He previously worked for the U.S. Air Force, National Security Agency, CIA and Mandiant, where he served as director of threat intelligence. Evron is the founder and CEO of AI security company Knostic and CISO-in-residence for AI at the Cloud Security Alliance. He also chairs the ACoD cybersecurity conference. Previously, he founded Cymmetria before it was acquired, served as CISO of the Israeli National Digital Authority, founded the Israeli CERT and led PwC's Cyber Security Center of Excellence. He authored the post-mortem analysis of the "First Internet War" in Estonia in 2007, founded early information-sharing groups including TH-Research and DA/MWP, and produced APT research such as Rocket Kitten and Patchwork. He also wrote one of the first papers on DNS DDoS amplification attacks. Don't miss our previous instalments of "Proof of Concept", including the Jan. 7 edition on the identity crisis in retail and the Jan. 14 edition on how machine identities are fueling a rising IAM crisis.