John Minasyan leads Belkin’s cybersecurity business unit focused on solutions to mitigate advanced threats at an operator”s desk. A KVM switch allows one keyboard, mouse, and monitor(s) to be shared among multiple computers. In sensitive applications where air-gap isolation is deemed necessary, this unmitigated data flow from one system to another basically bridges the air gap. KVMs are purpose-built, tested, and certified to physically block these potential data paths.
Source: https://www.helpnetsecurity.com/2021/07/29/secure-kvm-technology/