Like a scene from a James Bond or Mission Impossible movie, a new offensive USB cable plugged into a computer could allow attackers to execute commands over WiFi as if they were using the computer’s keyboard. 

When plugged into a Linux, Mac, or Windows computer, this cable is detected by the operating system as a HID or human interface device. As HID devices are considered input devices by an operating system, they can be used to input commands as if they are being typed on a keyboard.

Read more here: bleepingcomputer.com