NIS2 vs ISO 27001: Does Certification Prove Compliance?

Comparison Snapshot

How to Reuse an ISMS

• Crosswalk Annex A to each Article 21 category
• Add CSIRT reporting runbooks and authority contacts
• Extend supplier assurance for MSP/ICT providers
• Brief the board specifically on Article 20 themes

How CyberSilo Helps

• Article 21 evidence map and gap tracking in CSA for NIS2
• Article 23 reporting clocks with ThreatHawk SIEM detection workflows
• Advisory scoping — contact CyberSilo

Frequently Asked Questions

Will my ISO certificate satisfy a NIS2 supervisor?

It helps, but supervisors assess Directive obligations and national rules — expect entity-specific evidence beyond the certificate.

Should we certify first or map NIS2 first?

If already in scope for NIS2, map Article 21/23 immediately; use ISO work as an accelerator, not a delay.

Does DORA change this advice for banks?

Financial entities may face DORA as lex specialis for ICT risk — see NIS2 vs DORA; still map carefully.

Related NIS2 Resources

NIS2 hub · ISO 27001 · Article 21 · CSA