Intel Active Management Technology

Intel Active Management Technology (AMT) is hardware and firmware for remote out-of-band management of select business computers, running on the Intel Management Engine, a microprocessor subsystem not exposed to the user, intended for monitoring, maintenance, updating, and repairing systems. Out-of-band (OOB) or hardware-based management is different from software-based (or in-band) management and software management agents.

Source: Wikipedia — Intel Active Management Technology (CC BY-SA 4.0)