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Large companies will suffer a data breach of some type, and small companies are certainly not immune to a hacker’s interests. That extra “1” accounts for an air-gapped copy of your data. This is a great start to a DR plan, but what if ransomware compromises administrative passwords or domain info that allows that backup copy to be corrupted? Adding the “1” step insulates the data from further damage. Some companies store these copies on 2 different media (tape/disk/Cloud), and place at least 1 copy off-site/off-premise. It goes like this: replicate to at least 3 copies of your data, local hardware, cloud, backup cloud. You’ve probably heard of the 3-2-1 backup rule. More accessible backups are used more often, but if everything else fails, the air-gapped backups should provide a preserved copy and be capable of restoring the whole networks system. Typically speaking, air gaps are thought of as a final layer of protection for data integrity. This protects them from malicious software, direct cyberattacks and other corrupting threats. In terms of disaster recovery, the idea is to place backups behind air gaps. If the circuit is broken - or air exists between items in a network - then only a physical attack can threaten the data. The very name is derived from the principle. The concept is simple: any device that isn’t connected to a network cannot be attacked remotely. What Is an Air Gap?Īn air gap, also called an “air wall” or “air gapping,” is a security measure that protects data from intrusion. They provide a final means of defense that can make a significant difference when recovering from a data disaster. What is missing from many of those recovery plans, however, is a fundamental understanding of air gap backups. Disasters are inevitable, and a disaster recovery plan is essential to business continuity. Naturally, it’s become common practice to keep safe backups of anything business essential, but how companies keep those backups varies considerably. It’s not a matter of IF your business will succumb to hackers, a natural disaster, insider threat, or other mismanagement of data.