KVM switches are hardware devices frequently used in operational environments that allow a user to easily switch between and control multiple computers from a single keyboard, monitor and mouse. The inclusion of a microcontroller to identify a hot-key press suggests that these devices may be subverted as a key-logger. We show that this can be achieved using off-the-shelf tools and components by anyone with a minimum of electronic engineering and programming knowledge. The PIC16C57C Microcontroller is from a family of popular microcontrollers made by Microchip Technology.”]
Source: https://blog.talosintelligence.com/2017/04/hacking-belkin-e-series-omniview-2-port.html