IEC 62443 OT/ICS Security Compliance for Manufacturers — Free Gap Analysis
IEC 62443 is the international series of standards for Industrial Automation and Control Systems (IACS) security. It defines security requirements for OT/ICS environments across four levels — from security policies and processes to device-level security. Manufacturing companies supplying to aerospace, defense, energy, and automotive sectors increasingly face contractual requirements to demonstrate IEC 62443 compliance.
What IEC 62443 Requires
- Zone and conduit model: segment your OT/ICS network into security zones with defined conduits (data paths) between them
- Security Level (SL) targeting: identify required security levels (SL 1–4) for each zone based on consequence of compromise
- Risk assessment: identify OT-specific threats, vulnerabilities, and consequences across all IACS components
- Security management system: policies, procedures, and training specific to OT/ICS operations
- Supplier management: security requirements for system integrators, OEM equipment, and remote access vendors
- Patch management: formal process for applying patches to OT components with minimal production impact
- Incident response: OT-specific response procedures including safe production shutdown and recovery
Key Control Requirements
| Area | Requirement |
|---|---|
| IEC 62443-2-1 (Security Management) | Establish IACS security management system: policies, risk assessment, patch management, incident response |
| IEC 62443-2-4 (Service Provider Requirements) | Security requirements for system integrators and service providers with OT/ICS access |
| IEC 62443-3-2 (Zone & Conduit Design) | Risk assessment for zones and conduits; define Security Levels (SL 1–4) for each zone |
| IEC 62443-3-3 (System Requirements) | 7 Foundational Requirements: identification/auth, use control, system integrity, data confidentiality, restricted data flow, timely response, resource availability |
| IEC 62443-4-2 (Component Requirements) | Security requirements for OT hardware and software components (PLCs, SCADA servers, HMIs) |
How CyberStackHub Helps with IEC 62443
Our free tools map directly to IEC 62443 requirements, so you can assess your readiness without hiring a consultant.
Disclaimer: CyberStackHub provides assessment tools and educational content. Our tools help you identify gaps and prepare for compliance — they do not constitute legal advice or a formal audit opinion. Work with qualified compliance professionals for formal assessments and certification.