> iec_62443-4-1:2018
IEC 62443-4-1:2018
Security for Industrial Automation and Control Systems — Part 4-1: Secure Product Development Lifecycle Requirements
IEC 62443-4-1 specifies process requirements for the secure development of IACS hardware, firmware, and software products. It covers eight core lifecycle practices: security management, specification of security requirements, secure by design architecture, secure implementation, security verification and testing, defect management, patch management, and end-of-life product security.
Scope & Applicability
Applies to automation equipment manufacturers developing PLCs, RTUs, DCS controllers, HMIs, and industrial network switches.
Non-Coverage Boundaries
Does not define the operational plant security policies maintained by the asset owner (governed by 2-1).
Key Clauses & Control Requirements
Eight Secure Development Practices
Security Management, Security Requirements, Secure Design, Secure Implementation, Verification & Validation, Defect Management, Patch Management, and Product EOL.
Required Regulatory & Audit Evidence Artifacts
- [✓]Secure Development Lifecycle (SDL) Policy and Procedures Manual
- [✓]Threat Model and Attack Surface Analysis for embedded firmware
- [✓]Continuous Dynamic and Fuzz Testing Reports for industrial communication stacks
“Procuring control hardware with IEC 62443-4-1 certification ensures that the vendor's firmware was not hastily written in a garage without secure coding practices or vulnerability disclosure channels.”
Cross-Surface Ecosystem Relationships
- IEC 62443-4-1:2018 Secure product development lifecycle requirements ↗(International Electrotechnical Commission)
Frequently Asked Questions
How does IEC 62443-4-1 compare to IEC 62443-4-2?
Part 4-1 certifies the manufacturer's secure development process, while Part 4-2 certifies the technical security features of the resulting hardware/software component.