AI is the fastest-growing class of workloads in the cloud. The data it handles is often sensitive and/or regulated, and the models are valuable. Can we better protect AI? Can we rein in AI costs and its environmental impact? Being able to measure workload energy consumption provides awareness, which in turn paves the way for optimization. Confidential computing, special instructions and hardware, in combination with projects such as KEDA and Kepler, can work together to provide all three: Scalability, sustainability and security.