IEC 62443-2-1-2024 PDF

Full title and description

IEC 62443-2-1:2024 — Security for industrial automation and control systems — Part 2-1: Security program requirements for IACS asset owners. This edition defines the security‑program requirements asset owners need to establish, implement, maintain and continually improve to manage risk to industrial automation and control systems (IACS). It reorganizes requirements into Security Program Elements (SPEs) and introduces a maturity model for evaluating conformance.

Abstract

This standard specifies organizational and programmatic requirements (policies, processes, roles, governance and maturity evaluation) rather than prescribing specific technical controls for field devices. It is intended for asset owners and their stakeholders to build a repeatable security program that reduces IACS risk to tolerable levels and to provide a basis for requirement selection and conformity assessment. Key changes in the 2024 edition include the SPE structure, reduced duplication with ISMS approaches, and a defined maturity model.

General information

• Status: International Standard — published and active.
• Publication date: 7 August 2024 (IEC edition 2.0).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 25.040.40, 35.100.05.
• Edition / version: Edition 2.0 (IEC 62443-2-1:2024).
• Number of pages: 189 pages (IEC published PDF).

Scope

Specifies security program requirements for IACS asset owners, covering policy, governance, risk‑based requirement selection, roles and responsibilities, supply‑chain considerations, training and awareness, and conformance assessment. It does not mandate technical configurations for specific control systems; where technical capability is unavailable in legacy systems, compensating organizational measures are permitted. The standard also provides guidance on maturity assessment and requirement selection.

Key topics and requirements

• Security Program Elements (SPEs): organization & policies, risk management, asset inventory and classification, access control governance, incident response and recovery planning.
• Maturity model: defined levels and evaluation approach to measure program implementation and effectiveness.
• Conformity and requirement selection: methods for selecting applicable requirements and documenting compensating measures for legacy constraints.
• Supply-chain and third‑party security: responsibilities for procurement, supplier management and secure lifecycle practices.
• Human factors: background checks, role-based responsibilities, security awareness and training requirements.

Typical use and users

Primary users are IACS asset owners and their security, operations and engineering teams. It is used by CISOs, OT/ICS security managers, compliance officers, integrators, auditors and regulators to design and assess organization‑level IACS security programs and to align procurement and supplier management with program requirements. Organizations often use it as the governance layer that complements technical standards and product‑level security requirements.

Related standards

Part of the IEC/ISA 62443 series. Commonly referenced related documents include IEC/ISA 62443-1-1 (terminology and concepts), 62443-2-4 (service providers), 62443-3-2 (risk assessment for system design) and various technical and procedural parts and technical reports in the series. Implementers typically use Part 2-1 together with relevant technical parts when defining controls and assessments.

Keywords

IACS, OT cybersecurity, security program, asset owner, Security Program Elements (SPE), maturity model, ISMS alignment, supply chain security, requirement selection, conformity assessment.

FAQ

Q: What is this standard?

A: IEC 62443-2-1:2024 is an international standard that defines security‑program requirements for industrial automation and control system (IACS) asset owners, focusing on organizational policies, governance, roles and maturity assessment rather than device‑level technical configurations.

Q: What does it cover?

A: It covers the establishment, implementation, maintenance and continual improvement of an IACS security program, including SPEs such as organizational measures, risk management, supply‑chain responsibilities, workforce security and incident response; and it provides a maturity model and guidance on requirement selection and conformance.

Q: Who typically uses it?

A: Asset owners, OT/ICS security teams, CISOs, compliance and risk managers, system integrators, auditors and procurement organizations use the standard to build and assess enterprise‑level IACS security programs.

Q: Is it current or superseded?

A: This is the current IEC edition published in 2024 (Edition 2.0). It updates and replaces earlier editions/versions of Part 2-1 (previously published in 2009/2010 depending on regional designation).

Q: Is it part of a series?

A: Yes — IEC 62443-2-1:2024 is part of the IEC/ISA 62443 family of standards covering cybersecurity for industrial automation and control systems; users commonly apply multiple parts of the series together to cover governance, technical design, risk assessment and supplier/service provider requirements.

Q: What are the key keywords?

A: IACS, security program, asset owner, OT cybersecurity, SPE (Security Program Element), maturity model, ISMS alignment, supply chain, conformity assessment.