Secret 486 Core Backdoor MINIX, On Every Computer In The World Since 2008 – Video
September 3, 2021
It can also reimage your computer’s firmware even if it’s powered off, so if it’s still plugged in, MINIX can still potentially mess with your computer’s settings.
Even better it “can implement self-modifying code that can persist across power cycles. x86-based computers run their software at different privilege levels or “rings”. The lower the number your program runs at, the more access they have to the hardware. Operating systems run on ring zero, but MINIX runs on ring -3.