A new offensive USB cable could allow attackers to execute commands over WiFi as if they were using the computer’s keyboard. Created by security researcher Mike Grover, the cable includes an integrated WiFi PCB that was created by the researcher. When plugged into a Linux, Mac, or Windows computer, this cable is detected by the operating system as a HID or human interface device. This means an attacker can input commands regardless of whether the device is locked or not. The cable is not currently for sale, but Grover hopes to sell it to security researchers in the future.
Source: https://www.bleepingcomputer.com/news/security/new-offensive-usb-cable-allows-remote-attacks-over-wifi/