OT DEFENSEREVIEW

Intelligence for systems that move the physical world.

Standards publication · Dated market record

Change record: IEC publishes PAS 62443-2-2:2025

IEC published a specification for developing, validating, operating, and maintaining an IACS security protection scheme.

What changed

IEC published a specification for developing, validating, operating, and maintaining an IACS security protection scheme.

This entry preserves the event separately from maintained provider and capability conclusions. A rule, announcement, release, enforcement record, or market transaction can be material before enough evidence exists to revise a company classification or comparison.

Operating consequence

Asset owners should evaluate technology as part of a maintained technical, physical, and process protection scheme.

Teams should identify which records, populations, systems, transactions, jurisdictions, products, or decisions fall within the change. Then assign an accountable owner, response date, evidence requirement, and disposition. Broad reassessment is not always necessary, but a material event deserves a documented decision.

Capabilities to revisit

Network Segmentation Policy Modeling

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for network segmentation policy modeling.

Industrial Firewall And Policy Enforcement

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for industrial firewall and policy enforcement.

Secure Remote Access And Vendor Session Control

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for secure remote access and vendor session control.

Privileged Access, Credential, And Identity Governance

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for privileged access, credential, and identity governance.

Endpoint Allowlisting And Malware Prevention

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for endpoint allowlisting and malware prevention.

Compliance Mapping And Control Evidence

Review the maintained workflow definition, then ask affected organizations to show how this event alters inputs, governed rules, human judgment, exceptions, action, evidence retention, and downstream exchange for compliance mapping and control evidence.

Questions for operating teams

  • Which exact population and effective date does the source establish?
  • Does the change alter authority, policy, content, workflow, integration, evidence, or only market positioning?
  • What customer-controlled interpretation, configuration, or process remains outside a provider's responsibility?
  • What test case would show whether the operational consequence has reached production?
  • What record will close, defer, or supersede this review?

Evidence boundary

The source class is Official standards-body record. It establishes only the statements supported by the linked record and does not, by itself, establish implementation depth, market-wide availability, transaction-specific applicability, independent efficacy, or a universal buyer conclusion.