IEC 62443 vs ISO 27019

What is the difference between IEC 62443 and ISO 27019?

IEC 62443 is a other framework applying in International, with 81 controls across 11 domains. ISO 27019 is a information security framework applying in International, with 46 controls across 18 domains. They govern different subjects, so the overlap is limited to the governance requirements they share. The mapping below shows where that is.

IEC 6244381 controls

ISO 2701946 controls

Questions people ask about IEC 62443 and ISO 27019

What is the difference between IEC 62443 and ISO 27019?

IEC 62443 has 81 controls while ISO 27019 has 46 controls. Both frameworks address compliance requirements but differ in scope, focus, and applicability. Use our platform to explore the exact control-to-control mappings.

Do I need both IEC 62443 and ISO 27019?

Whether you need both depends on your industry, regulatory requirements, and customer expectations. Many organizations implement multiple frameworks simultaneously. Our compliance platform helps you map controls between IEC 62443 and ISO 27019 so you can identify shared requirements and avoid duplicate effort.

How do IEC 62443 and ISO 27019 controls map to each other?

Our platform maps controls between IEC 62443 and ISO 27019 at a granular level. Each mapping shows whether controls are fully aligned, partially aligned, or represent gaps. This helps you prioritize implementation when pursuing both frameworks.

Which framework should I implement first, IEC 62443 or ISO 27019?

The best starting point depends on your specific regulatory requirements, industry, and customer demands. Consider which framework is most urgently required by your stakeholders or regulators. Use our free compliance platform to run a gap analysis and determine the optimal implementation sequence.