Backups are regular, tested copies of your critical systems and data. At least one copy should be offline or immutable so that ransomware can't reach it.
My pickVeeamVeeam provides backup and recovery for servers, VMs, cloud workloads and Microsoft 365, with support for immutable storage.
Products differ in what they protect, such as servers, SaaS apps like Microsoft 365, and endpoints. They also differ in how fast they restore and whether their copies are immutable. Compare the restore times you have actually tested, not the advertised features.
Why it works
Good backups are the difference between a ransomware incident being an inconvenience and it being a business-ending event. Insurers ask whether backups are offline, encrypted and tested.
What to look for
Keep at least one offline or immutable copy, following the 3-2-1 rule.
The backup console should have its own credentials and MFA.