Intel Active Management Technology (AMT)
Intel® Active Management Technology (Intel® AMT) is a feature of Intel® Core™ processors with Intel® vPro™ technology1,2 and workstation platforms based on select Intel® Xeon® processors. Intel® AMT uses integrated platform capabilities and popular third-party management and security applications, to allow IT or managed service providers to better discover, repair, and help protect their networked computing assets. Intel® AMT also saves time with remote maintenance and wireless manageability for your mobile workforce, and secure drive wiping to simplify PC lifecycle transitions.
See also Wikipedia articles on:
AMT default login: Boot and press control-P. Login as admin/admin
AMT Forensics: Retrieve Intel AMT's Audit Log from a Linux machine without knowing the admin user's password. https://github.com/google/amt-forensics
AMT status checker for Linux: https://github.com/mjg59/mei-amt-check