Request a Consultation
Compliance-Based Training

IEC 62443 Industrial Automation & Control Systems Security Training

Standard-aligned training for securing Industrial Automation and Control Systems (IACS) to IEC 62443 — built for asset owners, system integrators, and product suppliers across manufacturing, energy, water, and every other OT-heavy industry.

+87%
Rise in ransomware activity against industrial organizations in 2024, with 80 groups now targeting the sector (Dragos, OT/ICS Cybersecurity Year in Review 2024, published 2025)
27.7%
Of all cyberattacks in 2025 hit manufacturing — the industry's fifth consecutive year as the most-attacked sector (IBM X-Force Threat Intelligence Index 2026)
$4.56M
Average cost of an incident that affects OT systems, above the $4.44M global breach average (IBM X-Force, The Operational Technology Threat Landscape)
1
Foundation Module — completed by every participant before entering their role-specific track

IEC 62443 Foundations — Zones, Conduits, and Security Levels

IEC 62443 is the internationally recognized series of standards for securing Industrial Automation and Control Systems (IACS), developed jointly by the ISA99 committee and IEC TC65/WG10. It is organized into four families — General, Policies & Procedures, System, and Component/Product — with 62443-2-1 setting security program requirements for asset owners, 62443-3-3 defining system-level security requirements and Security Levels, 62443-4-1 governing a secure product development lifecycle for suppliers, and 62443-4-2 setting technical requirements for individual components. The standard's core architecture divides a facility into security zones — groupings of assets that share common security requirements — connected by conduits that carry and control traffic between them. Each zone is assigned a target Security Level (SL-T, from SL 1 to SL 4) based on the sophistication of attacker it must resist, later validated as an achieved level (SL-A). This module builds that shared foundation before splitting into role-specific tracks.

+87%
Rise in ransomware activity against industrial organizations in 2024 (Dragos, OT/ICS Cybersecurity Year in Review 2024)
50%+
Of observed ransomware victims in 2024 were manufacturers; 25% of cases caused a full OT shutdown (Dragos, OT/ICS Cybersecurity Year in Review 2024)
46,000+
Internet-exposed ICS devices found communicating over Modbus worldwide during Dragos's FrostyGoop investigation (Dragos, OT/ICS Cybersecurity Year in Review 2024)

Core Risk Areas Covered

Zones & Conduits Segmentation Gaps

Flat, unsegmented OT networks let an attacker who breaches one device move laterally across an entire plant.

Insufficient Security Level Targeting

Zones assigned an SL-T that understates real threat exposure leave critical assets protected against the wrong adversary.

Legacy & Unpatched IACS Components

Controllers and HMIs built before IEC 62443-4-2 existed often cannot be patched without a scheduled outage.

Insecure Remote Vendor & Third-Party Access

OEM and integrator remote-access paths into the control network are a leading route into OT environments.

Unverified Component Supply-Chain Security

Procuring IACS products without evidence of IEC 62443-4-1/4-2 conformance imports risk before a system is even commissioned.

IT/OT Convergence Blind Spots

As enterprise IT tools extend onto the plant floor, monitoring and incident response often fail to cover both domains together.

The Regulatory Landscape, Explained Plainly

EU NIS2 Directive

Article 21 requires essential and important entities — including most manufacturing, energy, and water operators — to adopt risk-management measures, but the Directive is deliberately outcome-based rather than prescriptive; standards bodies such as DNV map its Article 21(2) requirements directly onto IEC 62443-2-1 controls, making the standard the practical implementation path OT-heavy entities use to demonstrate compliance.

EU Cyber Resilience Act (CRA)

CEN, CENELEC, and ETSI formally accepted the European Commission's CRA standardization request (Mandate M/606) on 3 April 2025, committing to deliver harmonized standards at least a year before CRA obligations take effect on 11 December 2027; CEN-CENELEC's own September 2025 workshop, "From EN IEC 62443 to CRA," confirms IEC 62443 as the base document for OT product standards covering CRA "Important" Class I and II products.

EU Machinery Regulation (2023/1230)

Applying from 20 January 2027, the Regulation adds a new essential health-and-safety requirement protecting machinery against "corruption" — unauthorized digital manipulation; with no dedicated harmonized standard yet in force, standards commentators expect the forthcoming EN 50742 to be built on IEC 62443's zone, conduit, and Security Level concepts rather than a competing framework.

Regulatory emphasis is tailored to your country and jurisdiction — tell us where you operate in the form below and we'll scope the frameworks that matter most to you.

Role-Specific Tracks

Built Around Who Actually Touches the Risk

After the shared foundation, participants split into focused tracks — each built from the systems and decisions that group actually owns.

2

OT/ICS Engineers & System Integrators

Control Systems Engineers · System Integrators · Automation Vendors

Applying zones and conduits to real control-system architectures, from network diagrams to physical cabinet layout
Selecting and documenting Security Level targets (SL-T) per zone based on consequence and threat analysis
Secure configuration of IACS components against IEC 62443-4-2 technical requirements
Designing secure remote access for vendors, integrators, and support engineers into OT environments
Patch and change management that protects uptime without leaving known vulnerabilities unaddressed
Incident response and forensics inside OT environments, coordinated with plant safety procedures
3

IT Security Staff Supporting OT

Enterprise Security Analysts · SOC Staff · IT/OT Liaisons

Where OT security priorities diverge from IT — availability and safety first, confidentiality second
IT/OT network segmentation, monitoring, and the visibility gaps typical enterprise tooling leaves behind
Governing vendor and third-party remote access into the control network
Extending IT security tooling (SIEM, vulnerability scanning, EDR) into OT without disrupting operations
Translating IEC 62443 zone and Security Level language into terms an enterprise risk register understands
Coordinating incident response across IT and OT teams during a converged attack

"OT security fails most often at the handoff — when an IT security decision meets a control system it wasn't designed for, or an engineering change meets a compliance requirement no one on the floor was trained to see. Splitting this training into an OT/ICS engineering track and an IT-security-supporting-OT track means each group gets the depth their job actually requires, while both walk away speaking the same IEC 62443 vocabulary of zones, conduits, and Security Levels — so the handoff stops being where things go wrong."

OT/ICS Engineers & System Integrators — Scenarios

A vendor requests remote access to a PLC for troubleshooting — designing the conduit and access control that makes this safe
A risk assessment flags a zone at SL-T 2 with components rated SL-C 1 — deciding on compensating controls versus component replacement
A ransomware alert fires on an engineering workstation with a live connection to the control network — executing OT-aware containment

IT Security Staff Supporting OT — Scenarios

The SOC sees anomalous traffic crossing from the corporate network toward a historian server — determining if it's an OT incident
A new EDR rollout is proposed for engineering workstations — assessing what breaks if it behaves like it does on a laptop
An auditor asks how NIS2 Article 21 risk measures are implemented in the plant environment — mapping the answer to IEC 62443 evidence

Format for These Tracks

On-site or remote Tabletop & live-range exercises Virtual instructor-led Self-paced e-learning
4
With extensive, in-depth coverage — the discipline this role depends on most

Asset Owners & Compliance Leadership

OT Security Program Owners · Compliance & Risk Leaders · Procurement Leadership

Asset owners carry the obligations IEC 62443 places at the top of the stack: standing up a Cybersecurity Management System aligned to 62443-2-1, setting Security Level targets across every zone, and holding suppliers and integrators to the requirements the standard sets for them. This deep-dive module is built for the people who own that program end to end — running the risk assessment that sets SL-T decisions, writing procurement language that requires IEC 62443-4-1 conformance from suppliers, preparing for third-party conformance assessment, and translating all of it into language a board, regulator, or insurer will accept. It closes with the regulatory landscape — NIS2, the Cyber Resilience Act, and sector-specific mandates — mapped directly onto the program elements this module builds.

Covered in Depth

Conducting an IEC 62443-2-1-aligned security program assessment and building the Cybersecurity Management System it requires
Running the risk assessment that sets and documents Security Level targets (SL-T) across every zone and conduit
Writing supplier and procurement requirements against IEC 62443-4-1's secure product development lifecycle
Preparing for third-party conformance assessment and certification against relevant IEC 62443 parts
Aligning the OT security program with EU NIS2 Article 21 risk-management obligations
Mapping Cyber Resilience Act obligations for connected industrial products into supplier and design requirements
Meeting incident-reporting timelines to regulators — including NIS2's 24-hour early warning and 72-hour notification clock
Budgeting, resourcing, and sequencing a multi-year OT security program alongside plant safety and continuity planning
Delivery Format
  • Instructor-led workshops
  • Self-paced e-learning modules
  • Tabletop & incident-response exercises
  • Executive & board-level briefings

All four modules can be delivered together as a full program, or the role-specific tracks can be licensed independently for organisations that only need one audience covered.

Why It Matters at This Scale

The stakes behind the training

One Standard, Every Stakeholder

IEC 62443 defines distinct obligations for asset owners, integrators, and product suppliers — our modules mirror that structure instead of flattening it into one generic course.

Compliance Is Not Optional

NIS2, the Cyber Resilience Act, and sector-specific mandates increasingly point to IEC 62443 as the recognized way to prove OT risk is managed — this training builds the evidence, not just the awareness.

People, Not Just Paperwork

A Cybersecurity Management System is only as strong as the engineers, integrators, and analysts who operate it — we train the people who make zones, conduits, and Security Levels real.

Register Interest

Bring IEC 62443-aligned training to your OT program, engineering team, or supply chain.

Schedule a consultation to scope the right modules for your asset owners, integrators, and suppliers. Tell us your country and we'll tailor the regulatory focus and delivery format to your region.

Modular by design

Run the full four-module program, or license just the tracks your organisation needs — built on the shared foundation module.

We reply within one business day. Prefer email? Write to info@thecyberdiplomat.com.

Looking for a different programme?

Explore our full range of accredited training categories.

View All Training