Explore the intricacies of OP-TEE (Open Portable Trusted Execution Environment) in this 40-minute conference talk presented by Clément Léger from Bootlin. Delve into the world of secure computing and discover how OP-TEE operates when Linux relinquishes control. Gain insights into the architecture, implementation, and security implications of this trusted execution environment, understanding its role in protecting sensitive data and operations on ARM-based systems.