Recently there has been talk of some form of malicious HID devices receiving feedback from the host computer via rapid toggling of the Num/Caps/Scroll Lock status LEDs, this is a simple application to detect such a device.
Keyboard status light communication detector
Recently there has been talk of some form of malicious HID devices receiving feedback from the host computer via rapid toggling of the Num/Caps/Scroll Lock status LEDs, this is a simple application to detect such a device.
Keyboard status light communication detector