IEC62443 Consulting

IEC 62443 Consulting and Compliance Services

Practical IEC 62443 Consulting for Industrial Automation and Control Systems

IEC 62443 is the international series of standards for securing industrial automation and control systems (IACS). It defines cybersecurity requirements for asset owners, system integrators, and product suppliers, using concepts such as risk assessment, zones and conduits, and security levels.

Forti Vision helps asset owners, system integrators and product suppliers to understand, apply and demonstrate compliance with IEC 62443. Our consultants bring 18+ years of hands-on experience in substation automation, SCADA, and industrial networks, and hold ISA/IEC 62443 and GICSP certifications.

We connect the requirements of the standard with practical OT engineering, security architecture, and operational reality. The result is a security program that works on the plant floor, not just on paper.

From IEC 62443 Requirements to Practical OT Security

Implementing IEC 62443 is not simply a matter of completing a compliance checklist. To apply the standard effectively, organizations need a clear understanding of:

Their industrial assets and system architecture
Cybersecurity risks and potential consequences
Zones, conduits, and trust boundaries
Target security levels and required controls
Existing controls and security gaps
The remediation needed to close those gaps

Forti Vision translates these requirements into practical cybersecurity activities and engineering outcomes your teams can implement.

Our IEC 62443 Consulting Services

IEC 62443 Gap Assessment

We assess your current OT cybersecurity posture against applicable IEC 62443 requirements and document the gaps. The assessment can cover:

Policies and procedures
Asset and risk management
Network architecture and segmentation
Access control and system hardening
Security monitoring
Incident response, backup and recovery
Security program management

Fixed-fee gap assessment packages are available for defined scopes.

IEC 62443-3-2 Risk Assessment

We perform cybersecurity risk assessments for industrial automation and control systems following the IEC 62443-3-2 approach:

Defining the system under consideration
Asset and threat identification
Risk and consequence analysis
Establishing target security levels
Risk treatment and residual risk evaluation

Zones and Conduits Design

We apply the IEC 62443 zones and conduits model to your OT architecture:

Zone definition and asset grouping
Conduit identification
Trust boundaries and communication requirements
Security controls per zone and conduit
Network segmentation strategy

Security Level (SL) Assessment

We help you determine target security levels (SL-T) for each zone and evaluate whether the achieved security levels (SL-A) of existing systems meet them. Security levels are assessed in the context of the system, its risks and applicable IEC 62443 requirements.

IEC 62443-3-3 System Security Requirements

We support the evaluation and implementation of IEC 62443-3-3 system security requirements across the seven foundational requirements:

Identification and authentication control
Use control
System integrity
Data confidentiality
Restricted data flow
Timely response to events
Resource availability

IEC 62443-2-1 Security Program Development

We help asset owners establish and improve their IACS security program in line with IEC 62443-2-1:

OT cybersecurity policies and organizational responsibilities
Asset, risk and vulnerability management
Change management
Incident response and business continuity
Security awareness and training

IEC 62443-4-1 and 4-2 for Product Suppliers

For organizations developing industrial automation products, we provide guidance on secure development and component security:

Secure development lifecycle (IEC 62443-4-1)
Security requirements and threat modeling
Security verification and validation testing
Vulnerability management and security updates
Component security requirements (IEC 62443-4-2)
Security documentation and certification readiness

IEC 62443 for Every Stakeholder

Asset Owners and Operators

We help you set practical cybersecurity requirements, identify gaps and build prioritized remediation plans for your operational environment.

System Integrators

We help you build IEC 62443 requirements into system design, engineering, factory acceptance testing and commissioning, so your delivered systems meet customer specifications.

Product Suppliers and OEMs

We help you embed cybersecurity into your products and development processes and prepare for IEC 62443 certification.

How IEC 62443 Aligns with Other OT Security Frameworks

IEC 62443 works alongside other frameworks. Forti Vision helps you map controls across standards so you avoid duplicating effort:

Framework	Relationship to IEC 62443
NIST SP 800-82	US ICS security guidance that references and complements IEC 62443
NIST Cybersecurity Framework	High-level framework that can be mapped to IEC 62443 controls
NERC CIP	Mandatory requirements for North American bulk electric systems, often implemented alongside IEC 62443
UAE Information Assurance Regulation / DESC standards	UAE federal and Dubai critical infrastructure requirements that IEC 62443 can support
ISO/IEC 27001	Information security management for the supporting IT environment

The goal is a single, practical cybersecurity program suited to your industrial environment, not a set of duplicate control libraries.

Our 6-Step IEC 62443 Consulting Approach

Understand the environment: Establish scope, assets, architecture, operational requirements and objectives.
Assess current state: Evaluate existing policies, architecture, controls and processes.
Identify requirements: Determine the applicable IEC 62443 parts and target security levels.
Identify gaps: Document the differences between the current state and requirements.
Develop the roadmap: Prioritize remediation by risk, operational impact and feasibility.
Support implementation: Work with your engineering and cybersecurity teams to put improvements in place.

IEC 62443 Consulting Deliverables

Depending on the engagement, you receive:

IEC 62443 gap assessment report
IEC 62443-3-2 risk assessment
Zones and conduits model
Target security level definitions
Security requirements specification
Architecture recommendations
Policy and procedure recommendations
Cross-framework compliance mapping
Prioritized remediation roadmap
Management and technical reports
Implementation guidance

Frequently Asked Questions

What is IEC 62443?

IEC 62443 is a series of international standards for the cybersecurity of industrial automation and control systems. It covers security programs for asset owners (Part 2), system-level security requirements (Part 3), and secure product development and component requirements for suppliers (Part 4).

What is an IEC 62443 gap assessment?

An IEC 62443 gap assessment compares your current OT security controls, processes, and architecture against applicable IEC 62443 requirements. It produces a documented list of gaps and a prioritized roadmap to close them.

What are zones and conduits in IEC 62443?

Zones are groups of assets that share the same security requirements. Conduits are the communication paths between zones. Defining them lets you apply the right security controls where they are needed, instead of treating the whole OT network the same way.

What are IEC 62443 security levels?

Security levels (SL 1 to SL 4) describe how well a system can resist attackers of increasing capability, from casual misuse up to sophisticated, well-resourced attacks. Organizations set a target security level for each zone and compare it with the level their systems actually achieve.

Is IEC 62443 mandatory in the USA or UAE?

IEC 62443 is a voluntary international standard, but it is widely required in project specifications, tenders, and procurement for industrial and critical infrastructure. It is also referenced in US guidance such as NIST SP 800-82 and supports compliance with UAE critical infrastructure requirements.

Does Forti Vision certify organizations to IEC 62443?

Formal IEC 62443 certification is issued by accredited certification bodies. Forti Vision provides the consulting, gap assessment, and remediation support that prepares you for certification or for demonstrating compliance to customers and regulators.

Do you provide IEC 62443 consulting in the USA and UAE?

Yes. Forti Vision provides IEC 62443 consulting services across the United States and the United Arab Emirates, combining remote delivery with on-site work where required.

Build a Practical IEC 62443 Program

IEC 62443 delivers the most value when its principles become real improvements in your industrial environment.

Forti Vision combines OT engineering experience with cybersecurity expertise to take you from requirements and assessment through to practical implementation.