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IEC 62443 · Zone & Conduit Model · IACS Self-Assessment

OT Cybersecurity
Risk Assessment

Score your OT environment across five IEC 62443 security domains. The tool generates a risk profile mapped to Security Level targets — SL1 through SL4. Personalise with your zone names. When done, enter your email to receive a plain-text results summary in your inbox.

Rate each domain 1–5
Scoring guide 1 = Not implemented  ·  2 = Partial / ad-hoc  ·  3 = Defined process  ·  4 = Managed & measured  ·  5 = Optimised & verified. Scores map to IEC 62443 Security Levels. Add zone names in the second column to personalise the output.
Security Domain Zone / Area Maturity (1–5) Target SL Risk Level
Zone Isolation & Segmentation
Network boundary definition, perimeter controls
Conduit Controls & Firewall Rules
Traffic filtering, remote access, data diodes
Patch & Vulnerability Management
OT-aware patch cadence, compensating controls
Access Control & Authentication
RBAC, MFA for remote, shared account elimination
Incident Response & Recovery
OT-specific IR plan, detection, tested backup/recovery
Indicative only — engage a qualified IEC 62443 assessor for formal compliance.
Risk Profile — IEC 62443 Alignment

Next step: Focus remediation on domains scoring below your Target SL. Use the Backlog Prioritisation Scorecard to rank OT remediation items against other initiatives. Contact Shashikant Pradhan for a structured IEC 62443 gap analysis engagement.

SP
Shashikant Pradhan
Senior PM · MES & IIoT Consultant · Author, The Technical Floor · MDEC Systems
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