Backup integrity matters
A backup should be a reliable restore point. If a user, a compromised account, or malware can delete or alter the backup, the business may discover the problem only when recovery is already urgent.
Immutable backup focuses on preserving backup history. Users can access and download backups, but they cannot casually delete or modify protected copies. This turns the backup into a stronger safety layer instead of just another file location.
Why it matters against ransomware
Ransomware often searches for everything the infected machine or user account can reach. Local backup folders and network shares may be encrypted together with active business files.
Protected backup history improves the chance of restoring a clean copy from before the incident. That is not only a technical advantage; it directly affects business continuity.
What a good setup includes
- Backups should not be deletable or editable by everyday users.
- Backup results should be monitored and reported.
- Older restore points should remain accessible when needed.
- Copies should be kept outside the original computer's risk area.