I guess the best we have for that topic is this: AMD SEV Virtual Machine Support
Related topics:
So far the design decision was that we’d rather have a working system instead of delaying the launch of the IC by a long time until FHE or SEV is ready. One step at a time. But since the IC shall be a computation platform for any use case we’re well aware that there needs to be some way to work with data privately. That’s why there’s work going into SEV right now, and hopefully at some point in the future even FHE or something of similar strength.