https://www.theregister.co.uk/2018/05/25/researchers_crack_open_amds_server_vm_encryption/ > A group of German researchers have devised a method to thwart the VM security in AMD's server chips. > Dubbed SEVered (PDF), the attack would potentially allow an attacker, or malicious admin who had access to the hypervisor, the ability to bypass AMD's Secure Encrypted Virtualization (SEV) protections.