OT review
A review of OT controls in the language of IEC 62443.
We organise the state of remote access, segmentation and the remaining controls, then map it to IEC 62443 practices, before the deeper work begins.
01 Fit
When this service fits
When an industrial customer, auditor or insurer asks about OT security in IEC 62443 terms, and you first need a structured view of the state rather than a full system assessment. It suits industrial companies and manufacturers of devices used in industry. We treat IEC 62443 as a recognised language of evidence, not an imposed standard or a promise of certification.
02 Scope
What we review
- Remote access to OT systems.
- Segmentation and network exposure.
- Accounts and permissions.
- Logging and event visibility.
- Updates and vulnerability management.
- Backup and restore.
- Basic requirements from industrial customers.
- Mapping the current state to IEC 62443 practices.
- Recommendations that order the next steps.
03 Result
What decision the result supports
You receive a structured view of the stronger controls, the gaps and the areas that need deeper work.
04 Inputs
What to prepare
- A short description of the OT environment and its architecture, with a network diagram if one exists.
- How remote access to OT systems works, and the available security documentation.
- Any requirements from industrial customers, auditors or an insurer, if you have received them.
05 Terms
How scope and quotation are set
Scope and quotation depend on the number of sites and OT systems, the material available and the conversations required. We establish both after a short scoping call.
06 Limits
What this service does not replace
This is not IEC 62443 certification or a full system assessment. IEC 62443 is usually not mandatory as a single imposed standard; we treat it as a recognised language of evidence and map the state to its practices, we do not certify. The operator remains responsible for securing the OT systems and for decisions about changes.
07 Process
Signal → review → evidence → decision
Who is asking, and about what, in your OT environment?
What is the real state of the controls?
What can be shown in the language of IEC 62443?
Where to begin and what to defer?
08 Questions
Questions before starting
- Is this IEC 62443 certification? No. It is a review that orders the state and maps it to the standard's practices.
- Is IEC 62443 mandatory? Usually not as a single imposed standard, but industrial customers, auditors and insurers increasingly ask about it.
- Do you cover the whole plant? We establish the scope after a short scoping call, depending on the number of sites and systems.
09 Contact
Discuss the OT review scope
An outline of the OT environment and the current situation is all we need to open the conversation.
Discuss your OT environmentEditorial review: CZ Cybersecurity sp. z o.o. Content reviewed: 21 July 2026.