When you run a workload as a VM, container or in a serverless environment, that workload is vulnerable to interference by any person or software with hypervisor, root or kernel access. Enarx, a new open source project, aims to make it simple to deploy workloads to a variety of trusted execution environments (TEEs) in the public cloud, on your premises or elsewhere, and to ensure that your application workload is as secure as possible.
Source: Red Hat Emerging Technologies
Link: https://next.redhat.com/2019/08/16/trust-no-one-run-everywhere-introducing-enarx/