Page review information

Edition covered

IEC 62443 family — n/a — routing page; editions are recorded on the child standard pages

Content status

Reviewed

Coverage

Family landing page for industrial cybersecurity; routing and scope summary only.

Last reviewed

August 2026

Primary reference

The official published standard — required for final decisions

Confirm the governing edition, jurisdiction, and project-specific requirements before applying anything on this page.

Standards Explorer · Cybersecurity

Industrial Cybersecurity Standards

IACS security standards for networked industrial automation and control systems. IEC 62443 is the primary international series.

Quick Routing

Networked PLC or controller?            → IEC 62443-3-3 (Zone/Conduit + SL design)
Asset Owner — need a security program?  → IEC 62443-2-1 (CSMS)
Buying or certifying a product?         → IEC 62443-4-2 (component requirements)
Developing safety PLC software?         → IEC 62443-4-1 (secure development lifecycle)
Safety system with network interface?   → IEC 62443 + IEC 61511 (or IEC 62061)

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IEC 62443 Series

Standard	Scope	Status
IEC 62443 (full page)	IACS security — Zone/Conduit, Security Levels, FRs, lifecycle	Review pending
IEC 62443-2-1	Security management system (CSMS)	Covered in IEC 62443 page
IEC 62443-3-3	System security requirements and SL levels	Covered in IEC 62443 page
IEC 62443-4-1	Secure product development lifecycle	Covered in IEC 62443 page
IEC 62443-4-2	Component security requirements	Covered in IEC 62443 page

View IEC 62443 detail page →

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Relationship to Functional Safety

Cybersecurity and functional safety are separate but interdependent disciplines for networked safety systems:

• IEC 61511:2016 requires a cybersecurity risk assessment for safety instrumented systems.
• IEC 62061 does not explicitly mandate a cybersecurity assessment but the principle that a safety function must not be defeated by a foreseeable means applies.
• A successful cyberattack on a safety system is a safety hazard — the cybersecurity Zone/Conduit design must protect the safety function as well as the system.

See also	Link
Networked Safety PLC scenario	Scenario 04
Software Stack and routing guide	Software Stack
Functional safety family	Functional Safety

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Out-of-Scope for This Corpus

Topic	Status
IEC 60079 (hazardous area)	Covered separately — see Hazardous Area
NIST SP 800-82 (US OT security guide)	Out of scope for this corpus
NERC CIP (electric utility cybersecurity)	Out of scope for this corpus
ISA/IEC 62443 certification schemes	Out of scope for this corpus — verify against ISASecure and TÜV certification bodies

Trust Boundary — Engineering Judgment Required

This site is an independent educational reference for industrial automation standards. It paraphrases and organizes guidance in original language; it is not a substitute for the official published standards, professional engineering judgment, or legal review, and content has not been independently verified against current published editions.

Items marked Review pending await technical review against the identified edition. Items marked Planned have no reviewed source material behind them. Do not rely on this site for compliance determinations, safety-critical design decisions, or legal interpretation.