A secure network that is physically isolated from unsecured networks, including the public Internet.
An air-gapped environment is a security measure that keeps a computer network physically and logically isolated from unsecured networks, such as the public Internet or standard corporate LANs.
The term "air gap" refers to the physical space between the secure system and any external connection. Data can move in or out of an air-gapped system only on physical media, such as encrypted USB drives, carried by vetted personnel under strict security protocols.
For AI, running models in an air-gapped environment provides strong protection against cyber espionage, data exfiltration, and external zero-day exploits.
See also Data Exfiltration, Role-Based Access Control and Zero Trust Architecture.