KVMs (Keyboard, Video, and Mouse switches): Hardware devices that allow users to control multiple computers from one set of keyboard, monitor, and mouse. While they are not inherently security devices, their use can have significant security implications. For example, they can reduce the number of peripheral devices, thus limiting potential entry points for hardware keyloggers. However, they also need to be secured properly as they can be a point of vulnerability, potentially allowing an attacker with physical access to switch between and gain control of connected systems.