Peripheral devices can compromise the air gap.Always assume that your backup will fail - if you have three high-quality backups, that won’t be a significant problem. We recommend keeping three physical copies of important backups at the absolute minimum. More often, the same event that affects the original system also affects the backup (for instance, when fires or flooding cause data loss). Clients may try to read the data on a compromised system, which in turn compromises the backup. We frequently receive calls from clients who had excellent backup practices, with one crucial exception: They only kept a single copy of the important data. This is an especially significant problem for servers, but it can also apply to home computers: If you need an up-to-date copy of a certain spreadsheet, a month-old or year-old version probably won’t suffice. Since the media isn’t connected to the network, it can become outdated quickly.Here are a few considerations to keep in mind: However, while air gapping plays an essential role in preventing data loss, it has its own drawbacks. It’s also a useful tactic for personal computer users: If you keep a backup of essential data on a mobile hard drive or optical media, you probably won’t be calling anytime soon. The air gap is, quite literally, a lack of cables or connections - since the backup is totally offline, it can’t be compromised easily.įor decades, air gapping has been a cornerstone of disaster recovery. The criminals’ goal is to eliminate any chance of data recovery if a company doesn’t have access to its backups, they’ve succeeded.Īn air-gapped backup strategy keeps backup media isolated from other computers on the network. Cybercriminals often target backup systems, and some ransomware variants stay dormant for months before activation. With the rise of ransomware attacks, enterprises - and personal computer users - are struggling to find foolproof prevention tactics.
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