IEC 62443 compliance refers to adherence to the IEC 62443 series of international standards developed by the International Electrotechnical Commission (IEC) and ISA for securing industrial automation and control systems (IACS). The standard defines cybersecurity requirements for system integrators, asset owners, product suppliers, and service providers in operational technology (OT) environments. It covers technical, procedural, and governance-based security controls across system lifecycles.
IEC 62443 provides a comprehensive, vendor-neutral framework for protecting industrial systems against cyber threats. It is globally recognized and widely adopted in sectors such as energy, manufacturing, transportation, and critical infrastructure. The standard addresses a broad range of controls, from network segmentation and security levels to authentication, remote access, and auditability.
Access control is a central focus of several IEC 62443 components:
Compliance with IEC 62443 not only reduces cyber risk in industrial systems but also supports procurement, regulatory alignment, and supply chain assurance across global operations.
Xona enables compliance with IEC 62443 access control and remote access requirements by delivering a secure, protocol-isolated access platform purpose-built for OT environments. Its features map directly to key IEC 62443-3-3 and 2-4 technical requirements, including:
By providing granular access control, visibility, and auditability, without requiring direct network exposure, Xona helps asset owners, system integrators, and vendors enforce the technical controls outlined across the IEC 62443 framework.