In an era of tightening EU regulations, choosing a backup system is no longer a routine IT hardware purchase. It has become a strategic decision for business continuity and Board-level legal security. This document defines the key technical criteria a modern data protection infrastructure must meet to pass NIS2 and DORA compliance audits.
Most traditional solutions (NAS servers, simple disk arrays) rely on copying data from backup to a production server. With today's data volumes (TBs), network bottlenecks (often 1Gbps or 10Gbps) make it impossible to meet stringent RTO parameters.
Key Criterion: Does the system allow for instant machine startup (Instant Mount) directly from the backup repository without transferring files over the network?
| Feature | Traditional NAS (SMB/NFS) | Modern DR Architecture (Instant Mount) |
|---|---|---|
| 1TB Recovery Time | Approx. 3-5h | Under 15 min |
| Network load during recovery | 100% - network paralysis | Minimal - operational traffic only |
| Method | Block copying | Storage layer virtualization |
Modern ransomware attacks primarily target backups. If a backup system is visible on the network as a standard share (e.g., via SMB), a hacker can encrypt or delete it as easily as user files.
Key Criterion: Does the system feature logical Immutability, preventing backup deletion even by an administrator with the highest privileges?
Following NIS2 requirements, data protection must account for the current state of technical knowledge. The 'Harvest Now, Decrypt Later' (HNDL) tactic renders today's encryption standards potentially useless against quantum computers. Note that AES-256 is NOT a fully post-quantum algorithm; it offers only partial resistance, and recent cryptanalysis publications point to emerging vulnerabilities.
Key Criterion: Does the vendor mandate NIST-compliant post-quantum cryptography (e.g., ML-KEM / FIPS-203)? Solutions lacking FIPS-203 protection may require replacement within the next 24-36 months.
DORA and NIS2 impose obligations for regular business continuity testing. Manual backup testing once a year is insufficient and operationally expensive.
Key Criterion: Does the system generate automated Verification Reports, serving as ready-made input for an auditor without involving IT staff?
Required to prove integrity.
Automated report with timing results.
Risk reduction via 'White Glove' system.
Reactive backup is no longer enough. Waiting for the central server to notice encrypted files during a backup window means the damage is already done and data exfiltration may have occurred.
Key Criterion: Does the system have the capability to detect ransomware activity directly on the client machine (agent-side) in real-time, rather than relying solely on server-side post-backup analysis?
The following checklist should be attached to every RFI/RFP in the backup systems domain.
Note: Selecting a solution that fails to meet the above criteria may be deemed by supervisory authorities as a failure to exercise due diligence in digital risk management.