We support organisations in securing Industrial Automation and Control Systems (IACS) through the full IEC 62443 framework — from risk assessment and zone/conduit design through to security level verification and certification.
Threat-based security levels from accidental violations to state-sponsored attacks.
IEC 62443-1 through 4-2 covering policies, risk, systems, and components.
The core architectural model for partitioning IACS environments by security requirement.
IEC 62443 defines four Security Levels based on the sophistication of the threat actor. Click a level to explore.
Security Level 1 addresses protection against unintentional or accidental violations. It represents the minimum baseline of security for industrial automation and control systems, guarding against non-targeted threats such as malware spreading without intent.
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A Zone is a grouping of logical or physical assets that share common security requirements. Zoning is the foundation of IEC 62443 risk partitioning.
A Conduit is a logical grouping of communication channels connecting two or more zones, with security controls applied at the boundary.
The SL-T is the desired level of protection for a zone based on cyber risk assessment. It drives product selection and system design decisions.
IEC 62443-3-2 defines the risk assessment process for determining security levels and prioritising countermeasures for IACS environments.
Our team brings deep expertise across the IEC 62443 series — from initial cyber risk assessments and zone/conduit design through security level verification, gap analysis, and audit preparation. We help asset owners, system integrators, and component suppliers achieve and demonstrate compliance across the full IACS cybersecurity lifecycle.
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