Submitted via IRC for TheMightyBuzzard
Attackers with access to a device can take control over a target's computer and bypass all local security systems by abusing a hardware debugging interface included with Intel CPUs, which in recent years has become accessible via an external USB 3.0 port.
Source: https://www.bleepingcomputer.com/news/hardware/intel-cpus-can-be-pwned-via-usb-port-and-debugging-interface/ [bleepingcomputer.com]