MIDEATOTO Key switches have been used for a variety of purposes, up to and including the launch of nuclear missiles. A key switch (sometimes called a keyswitch or lock switch) is a key-operated switch. In less secure applications such as corridor and restroom lighting controls in public buildings, tamper-resistant switches with a simpler key mechanism may be used instead. Wikimedia Commons has media related to Key switches. Key switches are used in situations where access to the switch's functions needs to be restricted.|Value in a Supercar?