How to protect backups from physical destruction of equipment?

Protecting backups from physical destruction of equipment is a fundamental information security requirement for any project. Local backups stored in the same building or on the same server as the working data will not save the day in case of a fire, flood, equipment theft, or power surge in the electrical grid.

To minimize such risks, the concept of geographical separation of storage media is applied. The basic rule states that at least one copy of critical data must be located in another physical building or region, remote from the main source at a safe distance.

There are several practical ways to implement remote backup storage without high costs:

The choice of a specific method depends on the volume of information and financial capabilities. For small projects, the optimal solution is automatic uploading of encrypted archives to the cloud, while large corporate systems require full mirror replication to another provider's data center.