IEC 62443vsISO/SAE 21434
See exactly how IEC 62443 controls map to ISO/SAE 21434. Pre-computed mappings, identified gaps, and coverage analysis.
According to the TheArtOfService Compliance Knowledge Graph:
IEC 62443 maps to ISO/SAE 21434 with 11% coverage across 9 directly mapped controls. Analysis of 81 IEC 62443 controls identifies 72 compliance gaps — primarily concentrated in 62443-3-3 System Security Requirements.
Source: TheArtOfService Knowledge Graph | 81 controls analysed | 718 frameworks | 330K+ cross-framework mappings
Control Mappings
Showing 15 of 15 mapped controls across 4 domains. Sign up to explore all 330K+ mappings across 718 frameworks.
IEC 62443: Asset Identification & Governance(1 mappings)
IEC 62443: Access Management(9 mappings)
IEC 62443: Systems Security(2 mappings)
IEC 62443: Incident Response & Recovery(3 mappings)
Related Comparisons
Other IEC 62443 comparisons
Other ISO/SAE 21434 comparisons
Stop Paying Consultants to Read Spreadsheets
AI-powered compliance intelligence across 718 frameworks — at a fraction of consulting costs.
Free
- ✓ 718 framework browser
- ✓ Cross-framework mappings (330K+)
- ✓ 824 compliance assessments
- ✓ 3 AI queries & searches per day
Professional
- ✓ Unlimited AI Compliance Advisory
- ✓ Unlimited full-text search
- ✓ Framework self-assessment
- ✓ PDF, Excel & CSV exports
What are the key differences between IEC 62443 and ISO/SAE 21434?
IEC 62443 has 81 controls across its framework, while ISO/SAE 21434 covers 50 controls. Direct mapping analysis identifies 9 overlapping controls (11% coverage). The frameworks diverge most significantly in 62443-3-3 System Security Requirements, where 24 IEC 62443 controls have no direct ISO/SAE 21434 equivalent.
How many controls map between IEC 62443 and ISO/SAE 21434?
Of 81 total IEC 62443 controls, 9 map directly to ISO/SAE 21434 controls — representing 11% coverage. The remaining 72 controls represent compliance gaps requiring additional documentation or compensating controls to satisfy both frameworks simultaneously.
What are the compliance gaps when mapping IEC 62443 to ISO/SAE 21434?
72 IEC 62443 controls have no direct equivalent in ISO/SAE 21434. The highest concentration of gaps is in 62443-3-3 System Security Requirements with 24 unmapped controls. These gaps represent areas where additional controls, policies, or documentation must be created to achieve compliance with both frameworks.
Which control domains have the most gaps between IEC 62443 and ISO/SAE 21434?
The domain with the highest gap count is 62443-3-3 System Security Requirements (24 gaps). Export the full domain-by-domain gap breakdown via the Professional tier to generate a prioritised remediation roadmap.
Related Resources
This platform provides educational compliance tools, not legal, regulatory, or professional compliance advice. Cross-framework mappings are AI-assisted interpretations and do not reproduce or replace official standards. Framework names and trademarks belong to their respective owners. Consult qualified professionals for your specific compliance requirements. See our Terms of Service.