Ransomware attackers will attempt to locate your backups, steal the data from them, and then delete them. If you can prevent this, you can recover from an attack without giving in to blackmail.

A good data protection setup will set the backup frequency, retention, and number of copies in relation to the value of the data, as not all organizational data has the same value. You really need to think the strategy through with respect to your own organization’s needs and capabilities, not to mention regulatory requirements.