
People switch to Linux because of privacy, only to realize that the hardware itself can see everything you do (very likely the NSA is using these backdoors).
In short, Intel ME and AMD PSP are effectively autonomous mini computers that reside directly on the CPU or chipset. Both subsystems run below the operating system and possess highly privileged access to memory, firmware, and hardware resources.
They both run a closed source OS (Intel ME runs a fork of MINIX) which can even run when the PC is turned completely off. For Intel ME, it can also access the network when power is turned off. Whether you’re on Windows, Linux, FreeBSD, etc. the NSA or some other big intelligence agency likely knows everything we’re doing. Or exploited by an attacker with a zero day exploit unknown to the world.