The most effective security measures typically involve a layered approach. The 3-2-1 backup strategy is a tried and true solution for protecting your data, but we advocate going above and beyond with the 3-2-1-1-0 method for improved risk mitigation.
As we dive into the stages of backups, consider the risk of something going wrong. The closer we are to your internal systems — think your production data, for example — the higher chance that your backups could be lost. However, the further we get from the core, the safer it should become from threat actors or internal missteps.
- 3 Copies of Data
- 2 Different Media Types
- 1 Offsite Copy
- 1 Air-gapped or Immutable Copy
- 0 Errors After Testing and Recovery Verification