Data backups are absolutely vital for anyone who even casually uses a PC or mobile device. Losing your vacation photos or your financial records can be devastating, especially if your data can’t be reconstructed from other records. It is for this reason everyone should have a backup strategy and that strategy should include some kind of off-site component.
Most IT professionals will tell you backups should come in three flavors. The first is a simple copy. The second is a copy stored on a different kind of media. The third is a copy stored off-site. This is one reason “cloud” backup services have become so popular recently.