FAQ: IEC 62443 & OT Security
Do I need formal IEC 62443 certification?
Certification according to IEC 62443 is voluntary – unless your industry or a client explicitly requires it. NIS2 refers to IEC 62443 as a reference standard but does not mandate formal certification.
What is the difference between NIS2 and IEC 62443?
NIS2 is an EU directive that defines legal requirements. IEC 62443 is a technical standard that explains how to implement these requirements in OT practice. Both complement each other.
Can eguide4DATA cover full IEC 62443 compliance?
eguide4DATA addresses security-relevant areas such as backup, versioning, change management, and inventory. Full IEC 62443 compliance also requires network architecture, access management, and additional measures.
Which parts of IEC 62443 are most relevant for SMEs?
For manufacturing companies without a specialized security department, IEC 62443-2-1 (security management) and IEC 62443-3-3 (system requirements) are the most practical entry points.