You Can't Secure an AI Agent with Software | Charles Guillemet, Ledger

Charles Guillemet is CTO of Ledger and the founder of the Donjon, Ledger's internal offensive security lab whose job is to break the company's own products before attackers do. He spent a decade in cryptography and hardware security before Ledger, including designing secure integrated circuits. Full transcript and chapters: https://chainofthought.show/podcast/65-you-cant-secure-an-ai-agent-with-software/ His argument is blunt: you cannot secure an AI agent with software alone. As agents start moving real money, API keys and trust scopes leave no physical verification layer, and Charles makes t