Air Gapping

Air gapping is a security measure that involves physically isolating a computing device or network and preventing it from establishing an external connection. Air gapping is often used to protect critical SCADA systems from attack, including those that support the military and industrial power industries.

Air gapping can also aid in recovery efforts. For example, if a company’s network is hit by a ransomware attack, but the company used air gapping as part of their 3-2-1 backup strategy, they will have an offline copy of the latest backup to use for recovery and not have to pay the ransom.