Intel x86 considered harmful by Joanna Rutkowska
https://blog.invisiblethings.org/papers/2015/x86_harmful.pdf
The IME is basically a second computer inside your computer, running as the most privileged component on the platform. It has privileged access to all components of the system, and runs as long as the computer is plugged in or has battery (even if it the computer is switched off). It is under the control of Intel, they decide what the IME does, and it can use the NIC as it pleases, unnoticeable for the host system. It can not be disabled, switched off or removed. The rootkit researcher Rutkowska described it as "an ideal rootkiting infrastructure".