Charles Green

Charles Green is the founder of Lean Security, where he provides security training, advisory, and testing services. A former 2x CISO with deep experience in fintech, he has spent his career building and leading cloud security, red, and blue teams. His current focus is on securing multi-agent AI systems and delivering hands-on security training. Based in Japan for over 18 years, Charles is an active member of the fintech and cybersecurity community.

Threat Modeling with Multi-Agent AI

Threat modeling is essential, but it’s often slow, frustrating, and incomplete. Documentation is outdated, architecture diagrams are missing, and worst of all, confident and helpful engineers give you the wrong information.

This talk explores how multi-agent AI systems can automate core parts of the threat modeling process by extracting live data from cloud metadata, architecture diagrams, and documentation, then mapping it to STRIDE risks. These agents work together to uncover inconsistencies, reduce guesswork, and generate testable outputs for security teams.

Rather than relying on static templates or tribal knowledge, this approach builds a live, accurate view of your system. You’ll leave with practical ideas to make threat modeling faster, more reliable, and easier to scale.