Acronis Blog – 12.20.22
Backup is important, but it is just as important to remember that having one backup copy is sometimes not enough. For example, let’s assume you back up your computer to an external drive, which you keep in your home office. If your computer crashes, you have the backup copy. However, if a fire breaks out in your home, it will destroy both your computer and the external drive.
Source: What is the 3-2-1 Backup Strategy? – 2023 Guide by Acronis