11% of cyberattacks target the transport sector
508 ICS Advisories were discovered in 2025 - in 2011 there were just 67
IEC 62443 - the global benchmark for Operational Technology (OT) security and Industrial Automation and Control Systems (IACS). It is more than IT-focused - protection of hardware and software that manage physical processes in industrial environments.
Prevent cyber incidents from escalating into physical accidents or environmental disasters.
"Zones and Conduits" secure breaches from spreading across the entire network.
Minimize expensive downtime and increase protection against industrial-scale ransomware.
Prevent cyber incidents from escalating into physical accidents or environmental disasters.
"Zones and Conduits" secure breaches from spreading across the entire network.
Minimize expensive downtime and increase protection against industrial-scale ransomware.
Start your itemis SECURE IEC 62443 analysis with itemis SECURE within 20 Minutes.
Leverage intelligent AI to automatically generate attack trees and ensure best-practice compliance, significantly reducing errors and manual effort.
Ensure IEC 62443 compliance with automated, consistent modeling that saves you time.
itemis SECURE eliminates data silos by integrating effortlessly into your existing toolchain for a a fully connected Cybersecurity Lifecycle.
Stay ahead of regulatory requirements by leveraging powerful synergies of IEC 62443 with the Cyber Resilience Act (CRA) to streamline your compliance processes. Compliance with IEC 62443 supports the implementation of the Cyber Resilience Act (CRA) as the standard already defines secure development processes, technical security requirements, and vulnerability management practices that align with CRA obligations.
Leverage intelligent AI to automatically generate attack trees and ensure best-practice compliance, significantly reducing errors and manual effort.
Ensure IEC 62443 compliance with automated, consistent modeling that saves you time.
itemis SECURE eliminates data silos by integrating effortlessly into your existing toolchain for a a fully connected Cybersecurity Lifecycle.
Stay ahead of regulatory requirements by leveraging powerful synergies of IEC 62443 with the Cyber Resilience Act (CRA) to streamline your compliance processes. Compliance with IEC 62443 supports the implementation of the Cyber Resilience Act (CRA) as the standard already defines secure development processes, technical security requirements, and vulnerability management practices that align with CRA obligations.
Support industry-specific terminology and concepts for railway, automotive and respective domains
Custom project templates allow configuration of methodology, concepts, and catalogs per standard
Guided threat modeling process from asset identification to integration of countermeasures
Support industry-specific terminology and concepts for railway, automotive and respective domains
Custom project templates allow configuration of methodology, concepts, and catalogs per standard
Guided threat modeling process from asset identification to integration of countermeasures
Implement support for defining and managing security zones in industrial systems
Enable modeling of conduits (communication channels between zones)
Support threat scenarios specific to railway and industrial automation systems
Identify and assess attack vectors relevant to Industrial Automation and Control Systems (IACS)
Calculate and assign appropriate security levels (SL-T, SL-A) based on threat analysis
Implement support for defining and managing security zones in industrial systems
Enable modeling of conduits (communication channels between zones)
Support threat scenarios specific to railway and industrial automation systems
Identify and assess attack vectors relevant to Industrial Automation and Control Systems (IACS)
Calculate and assign appropriate security levels (SL-T, SL-A) based on threat analysis
Map security controls to IEC 62443 technical security requirements
Compare residual risk against target risk levels
Evaluate remaining risk after countermeasures and provide discoverability features
Map security controls to IEC 62443 technical security requirements
Compare residual risk against target risk levels
Evaluate remaining risk after countermeasures and provide discoverability features
The IEC 62443 series is a globally unified standard, meaning the German (DIN EN IEC 62443) and American (ANSI/ISA-62443) versions are technically identical in content. The only real differences lie in the formal national adoption and the regional regulatory frameworks they support, such as NIS-2 in Europe or NIST-related guidelines in the US.
With the transport sector now targeting 11% of all cyberattacks and ICS advisories surging from 67 in 2011 to 508 in 2025, the stakes have never been higher. Unlike standard IT security, IEC 62443 focuses on Operational Technology (OT). It ensures that cyber incidents do not escalate into physical accidents, environmental disasters, or expensive industrial-scale downtime by protecting the hardware and software managing physical processes.
itemis SECURE provides dedicated features to model Security Zones and Conduits (communication channels) as required by IEC 62443. This segmentation prevents security breaches from spreading across your entire network. Our AI assistants guide you through the process ensuring your risk assessment is resilient by design.
Yes. itemis SECURE offers specialized terminology and methodology Adaptation. You can align your Cybersecurity Risk Assessment specifically with IEC 62443 principles while using industry-specific terminology. Whether you are assigning Security Levels for railway systems or industrial automation, the tool adapts to your domain’s unique catalogs and concepts.
|
IEC 62443 Part |
Role of Risk Assessment |
|
2-1 (Policies) |
Prioritizes budget and maintenance based on risk. |
|
3-2 (TARA) |
The Source: Defines zones, conduits, and SL-T. |
|
3-3 (System) |
Translates risk levels into specific technical controls. |
|
4-2 (Component) |
Ensures individual devices are "tough enough" for the assessed risk. |
itemis SECURE leverages the powerful synergies between IEC 62443 and the upcoming CRA requirements. By maintaining consistent, AI-supported threat models and mapping security controls directly to technical requirements, you streamline your compliance process.