https://www.bleepingcomputer.com/news/microsoft/microsoft-azure-now-has-confidential-vms-with-ephemeral-storage/

Microsoft has expanded its confidential computing offering and now allows Azure cloud computing service customers to create hardware isolated virtual machines (aka confidential VMs) with Ephemeral OS disks.

With this new public preview feature, Azure customers can create ephemeral OS disks only on the local VM storage (on VM cache or VM temp disk), thus ensuring that data remains 100% confidential since it will never be sent to remote Azure Storage.