OT cybersecurity
IEC/ISA 62443: protect your OT plant with the industrial cybersecurity standard
Your OT plant is more exposed than you think. With IEC/ISA 62443 we turn that exposure into a clear phased plan, prioritised by risk—without stopping production.
- Reference standard
- IEC 62443
- OT architecture
- Zones & SL
- Actionable delivery
- Phased plan
Definition
IEC/ISA 62443 is the reference series of standards for cybersecurity in plants (IACS/OT). It explains how to assess risks, divide into zones and conduits, set security levels (SL) and apply technical and organisational controls.
Updated · IEC 62443 · ISO 27001 · NIST CSF
What we solve
From risk analysis to zones, conduits and controls. We turn 62443 into a clear plan for plants, integrators and OT/IT teams.
View service: OT Cybersecurity →Who it is for
- OT / ICS / SCADA managers
- CISOs and industrial cybersecurity teams
- Automation engineering
- Companies subject to NIS2 or customer audits
What is included
- OT risk analysis following a 62443 approach
- Definition of zones, conduits and security levels (SL)
- Control and maturity gap analysis
- Hardening of critical assets (PLC, HMI, SCADA)
- Prioritised remediation roadmap
Deliverables
- ▸OT risk report and security architecture
- ▸Zone and conduit map
- ▸Controls and remediation plan
- ▸Governance and secure operations recommendations
How we work
A clear process while you submit your enquiry via the form.
STEP 01
Inventory and context
We identify OT assets, dependencies and the plant’s real exposure.
STEP 02
Risk and SL-T
We define the target security level and relevant threat scenarios.
STEP 03
Control design
We propose segmentation, hardening and technical/organisational measures.
STEP 04
Roadmap
We deliver a phased plan aligned to risk, cost and operational continuity.
Frequently asked questions
Is IEC 62443 the same as ISA 62443?
They are the same body of industrial cybersecurity standards (IEC/ISA 62443 series). In practice both names are used depending on the client or auditor context.
Do you need certification to get started?
No. The usual path is to start with an assessment and a maturity plan. Certification can be a later goal if the business requires it.
How does it relate to NIS2?
62443 provides the technical framework for industrial environments; NIS2 sets organisational cybersecurity obligations. In many cases they are addressed together.
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