Though I am a very noob in understanding crypto from a mathematical point of view (not just as an user of some ready program) IMHO following message can contain some truth about insecurity and intentional flaws of hardware crypto in X86 CPUs:
https://support.nitrokey.com/t/spectre-or-meltdown-vulnerability/850 https://archive.fo/bF0gg Note: Since these MS / U.S. government keys are deeply sticking in Intel XEON processor hardware, it doesn’t play a role, what other OS you install or boot afterwards: Debian/UBUNTU Linux, OpenBSD, … If your software uses Intel AES-NI hardware encryption, all encrypted packets ingoing, outgoing - then automatically contain that U.S. government backdoor!
