How ZeroGapOT supports IEC 62443

Turn architecture context into security boundaries

An operational hierarchy describes what different parts of a system do. Security zones and conduits describe boundaries and communication paths.

Explore early access →

Why it matters

The two views can inform each other, but a network level alone does not establish a security boundary.

How ZeroGapOT helps

Document zones, assets and permitted connections explicitly, then keep the diagram and assessment records together as the model changes.

Using this guidance

This overview describes the workflow in our own words. Consult the licensed standard for its requirements. Assessment outputs support review and do not establish certification.

About the standard

Continue exploring

Early access

Build a clearer assessment record.

Tell us about your OT environment and the assessment work you want to improve. Explore early access or a structured pilot.

Join Early Access →