The 3-2-1 Backup Rule in the Cloud Era

The 3-2-1 rule is simple: keep three copies of your data, on two different types of media, with one copy stored off-site. It has protected data for decades, and it is more relevant than ever.

The off-site copy used to be the hard part — shuttling tapes or drives to another location. Continuous cloud backup solves that automatically, giving you a resilient off-site copy that updates in near real time.

Pair a local copy on your device, a second on an external drive, and a continuously synced cloud vault, and you have a rock-solid 3-2-1 setup that requires almost no ongoing effort.

The key is automation. A backup you have to remember to run is a backup that will eventually fail you.