Guidance on security protection.

The International Society of Automation (ISA) has published ISA-TR62443-2-2-2025, Security for Industrial Automation and Control Systems, Part 2-2: IACS Security Protection Scheme.* This technical report is the latest update to the ISA/IEC 62443 series, the widely used global consensus-based automation and control systems cybersecurity standards and technical reports.

Eric Cosman

“ISA‑TR62443‑2‑2 gives asset owners and operators a risk-based approach for day‑to‑day security actions,” said Eric Cosman, ISA99 co-chair. “By bringing together technical controls, process maturity and clear accountability, this guidance based on the ISA/IEC 62443 series of standards can help organizations sustain cyber protection across the entire IACS lifecycle.”

ISA-TR62443-2-2-2025 provides actionable guidance for developing, validating, operating and maintaining a comprehensive security protection scheme (SPS) that safeguards industrial automation and control systems (IACS) in the operating environment. Built upon foundational content from the ISA/IEC 62443 series, the report offers clear models based on established requirements, as well as methods for assessment and validation.

The goal of this document is to ensure the asset owner/operator implementing an IACS security program (SP) has the proper mechanisms and procedures to manage the various risks resulting from cyberthreats to IACS.

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*ISA-TR62443-2-2-2025, Security for Industrial Automation and Control Systems, Part 2-2: IACS Security Protection Scheme.

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