The Ethernity CLIENT delegates tasks to 3rd parties using blockchain transactions. At this moment the tasks metadata is saved to the blockchain and the content is uploaded to IPFS without encryption. The results are also publicly readable through IPFS. Please take this information into consideration when submitting a task.
On the Testnet there still required to trust the data processor with the processing. Certain components of the system that handle results processing are still under development. The client is open source so anyone can establish a set of rules to only approve a set of data processors.
The side channel attacks against the common processors are not taken into consideration while developing the Ethernity software. Our vision is that the TEE technology will mature in time, and open hardware architecture such as RISC-V will provide robust environments for trusted computing.