Explore the concept of a WebAssembly (WASM) runtime for Function-as-a-Service (FaaS) protected by Trusted Execution Environment (TEE) in this conference talk. Delve into the challenges of confidential computing in cloud environments and learn how TEE provides hardware-isolated processing for secure applications. Examine the Inclavare project's cloud-native confidential computing container (CoCo) and its limitations, including cross-platform issues and performance overhead. Discover how WASM runtime addresses these challenges by offering a universal compilation target that is small, cross-platform, and cross-architecture. Gain insights into the architecture of WASM runtime, its fast boot capabilities, and the integration of Knative functions in TEE. Understand the potential of combining WASM, FaaS, and TEE for building a secure and flexible container runtime in cloud computing environments.