Achieve IEC 62443 Compliance Without Operational Disruption
The Global Foundation for Industrial Cybersecurity
TXOne's IEC 62443-4-1 certified solutions implement security zones, defense-in-depth, and target security levels while your operations keep running.
ISA/IEC 62443 is the definitive cybersecurity framework for Industrial Automation and Control Systems. TXOne's purpose-built solutions and certified development practices help organizations address all seven foundational requirements across networks, endpoints, and inspection workflows. With 3,600+ deployments and 180+ industrial protocol coverage, TXOne turns compliance requirements into operational protection.
REQUIREMENTS
Compliance Framework
What is ISA/IEC 62443?
ISA/IEC 62443 is the global standard for cybersecurity in Industrial Automation and Control Systems (IACS). Developed by the International Society of Automation (ISA) and the International Electrotechnical Commission (IEC), this framework guides asset owners, system integrators, and component suppliers across the full industrial system lifecycle. The standard organizes requirements into four categories: general concepts, asset owner policies and procedures, system-level security, and component-level security. This structure ensures security is addressed at every level, from individual devices to enterprise policies. Central to ISA/IEC 62443 is the zones and conduits model. Security zones group assets with similar protection requirements. Conduits manage communications between zones. This architecture enables defense-in-depth strategies that protect critical assets without forcing uniform security across all systems. The framework defines four Security Levels (SL-1 through SL-4) that let organizations match security posture to their specific risk profile. TXOne solutions support organizations in achieving target security levels through network segmentation, access control, system integrity protection, and continuous monitoring.
KEY COMPONENTS
ISA/IEC 62443 Requirements
Key requirements and challenges that ISA/IEC 62443 compliance addresses.
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Security Zone Architecture Complexity
Building and maintaining security zones across complex IACS environments with mixed-vendor equipment requires deep protocol understanding. Without OT-native segmentation, organizations create zones on paper that lack enforcement in practice.
Security Zone Architecture Complexity
Building and maintaining security zones across complex IACS environments with mixed-vendor equipment requires deep protocol understanding. Without OT-native segmentation, organizations create zones on paper that lack enforcement in practice.
Key Components
Core components of the ISA/IEC 62443 framework.
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Security Risk Assessment (FR 1)
Systematic identification and evaluation of cybersecurity risks across your IACS environment, establishing the foundation for all subsequent security measures.
Security Risk Assessment (FR 1)
Systematic identification and evaluation of cybersecurity risks across your IACS environment, establishing the foundation for all subsequent security measures.
How TXOne Enables ISA/IEC 62443 Compliance
TXOne holds IEC 62443-4-1 certification for secure development practices and delivers purpose-built solutions addressing all seven foundational requirements across your industrial environment.
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Network Zone Enforcement (Edge Series)
TXOne Edge implements the zones and conduits architecture central to ISA/IEC 62443. EdgeIPS and EdgeFire provide network segmentation with deep packet inspection across 180+ industrial protocols, enforcing restricted data flow and detecting threats at zone boundaries.
Network Zone Enforcement (Edge Series)
TXOne Edge implements the zones and conduits architecture central to ISA/IEC 62443. EdgeIPS and EdgeFire provide network segmentation with deep packet inspection across 180+ industrial protocols, enforcing restricted data flow and detecting threats at zone boundaries.
Compliance Outcomes
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Complete security zone segmentation across all IACS assets
Complete security zone segmentation across all IACS assets
HOW TXONE HELPS
Why TXOne for ISA/IEC 62443
Purpose-built OT security designed for ISA/IEC 62443 compliance requirements.
TXOne's secure development lifecycle is independently certified to IEC 62443-4-1. Products are built with security by design, not retrofitted after release.
Legacy approach creates operational risk
Solutions engineered specifically for OT environments with hardware bypass, industrial-grade operating ranges, and protocol-aware enforcement. Not IT tools adapted for industrial use.
Legacy approach creates operational risk
Deep packet inspection across 180+ industrial protocols enables comprehensive visibility and command-level enforcement that generic network tools cannot achieve.
Legacy approach creates operational risk
NEXT STEP
Assess Your ISA/IEC 62443 Compliance Posture
Our IEC 62443-4-1 certified solutions and OT security experts help you assess current posture, define target security levels, and implement protection that meets framework requirements.