(of a computer) having no direct connection to the Internet or to any other computer that is connected to the Internet, for security reasons.
 a USB drive or other hardware approach would be required to infect the air-gapped machine
 Example sentencesExamples
-  A cyber-security expert says that his "air-gapped" computers have exchanged malware through ultrasound.
 -  There are other examples of air-gapped systems being infected.
 -  Air-gapped systems are used in situations that demand high security because they make siphoning data from them difficult.
 -  Governments use such "air-gapped" networks to reduce the chance an external attack will be successful.
 -  Security scanners would not pick up on the attack; machines, even air-gapped ones, could be targeted.
 -  Criminal groups commonly target 'air gapped' machines with malware delivered via USB stick.