ISO 27001 Nonconformities: Major vs Minor and How to Close Them

Major vs minor

Majors can block certification or trigger urgent follow-up. Minors still need timely corrective action plans agreed with the CB.

Closure method

• Containment
• Root cause
• Corrective action
• Effectiveness review

Prevention

Strong internal audits catch issues before the CB does.

How CyberSilo Helps

• Evidence mapping in CyberSilo CSA
• Detection and logging proof with ThreatHawk SIEM
• Advisory scoping — contact CyberSilo

Frequently Asked Questions

How fast must we close?

Follow CB timelines — majors are urgent.

Can we dispute?

Yes with evidence; stay professional.

Repeat NCs?

Patterned repeats worry auditors — fix systemic causes.

Related Resources

• Surveillance
• ISO hub