IEC 62443-3-2 risk assessment

IEC 62443 Detailed Risk Assessment for OT Systems

Our OT security engineers assess the cyber risk to your plant and control systems. Our method is aligned with IEC 62443-3-2. You get each risk rated, each decision recorded and practical steps to reduce it.

Industrial OT expertise
IEC 62443 aligned method
Traceable risk decisions
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Assess Risk
Zones & Conduits
Define System
Plan Treatment
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IEC 62443

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DRA software

Explore Corgenta DRA

See how Corgenta DRA helps you assess risk, plan treatment and record each decision.

Corgenta DRA screen for selecting the assessment entity and system context

Define Your System Context

Set the system boundary, assets, zones and conduits first.

Corgenta DRA screen linking threat scenarios to rated risks

Assess Threats & Risks

Link each threat scenario to its risks, then rate likelihood and impact.

Corgenta DRA countermeasure form for planning risk treatment

Plan Risk Treatment

Check the countermeasures already in place, then add what each risk still needs.

Corgenta DRA review panel recording risk decisions

Review Risk Decisions

Record each risk rating, the reason for it and the review outcome.

Corgenta DRA assessment summary bringing findings together

Bring Your Findings Together

Bring your findings and records together for review and handover.

DRA Services

Expert Risk Assessment Services

Our engineers support you from first scope to final report.

Scope & System Analysis

Agree the system under consideration, then split it into zones and conduits.

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System scope & boundaries
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Asset & process identification
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Assessment criteria

Initial Risk Assessment

Find the worst-case risk for each zone, before any countermeasures.

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Worst-case impact
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Unmitigated risk
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Zone priorities

Detailed Risk Assessment

Find threats and weak points, rate each risk and plan how to treat it.

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Threats & weak points
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Target security levels (SL-T)
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Treatment & residual risk

Reporting & Handover

Get a clear report your team can act on and keep up to date.

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Assessment reports
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Risk documentation
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Findings & recommendations
Project Experience

Experience Across Industrial Projects

See anonymised examples of our work on industrial projects.

Discuss Your DRA Project
How we work

How Our Assessment Process Works

See how we go from first scope to a clear report and next steps.

Isometric illustration of an industrial site with its system boundary markedIsometric industrial site divided into security zones and conduitsIsometric industrial site with threat paths highlightedIsometric industrial site with security controls in placeIsometric industrial site showing residual risk under reviewIsometric industrial site with the completed assessment handed over
01

Scope & system context

Define the system scope, boundaries and assessment inputs.

02

Zones & conduits

Group assets into zones and conduits as the basis for assessment.

03

Threats & risk

Find credible threats and weak points, rate each risk and propose a target security level (SL-T) for each zone and conduit.

04

Controls & treatment

Check the countermeasures in place and recommend what else is needed.

05

Residual risk & review

Record the residual risk and agree decisions with your stakeholders.

06

Report & handover

Issue the reviewed report and agreed records for handover.

Why Corgenta

Why Industrial Teams Choose Corgenta

OT engineers with hands-on IEC 62443 experience, and a clear method that makes each risk decision easy to defend.

OT engineering competence

Experienced OT security engineers carry out each assessment.

Practical IEC 62443 experience

We apply IEC 62443 to zones, conduits, threats and countermeasures on real industrial projects.

Structured traceability

Each risk decision is recorded with the basis and reason behind it.

Usable handover

Clear outputs your engineers and operators can review and use.

Get in touch

Need an IEC 62443 Detailed Risk Assessment?

Talk to us about your DRA, or answer three quick questions to find your option.