It sounds like a major part of their plan, to just behave as a silent process that can always be re-booted through whatever changes the device goes through. Best to keep that sort of thing obscure.
It's been around for decades, the option to enable/disable it is in the BIOS setup on every machine that has it, and computer manufacturer's documentation tells you exactly what it is, because it's a selling point.
Neither had I.
It sounds like a major part of their plan, to just behave as a silent process that can always be re-booted through whatever changes the device goes through. Best to keep that sort of thing obscure.