Bezpieczeństwo OT
Bezpieczeństwo OT: Strefy i kanały wg IEC 62443 to u nas podstawa
Tuesday, shift change
The network plan on the wall has been out of date since the last rebuild. The colleague from maintenance knows the real state.
In Complass the plan is your inventory. Change a zone and the plan changes with it.

Your plant as a plan, straight from the data
You create zones and conduits once. Complass draws the network plan by Purdue levels from them.
- Every conduit carries rules for transport, port and direction.
- Complass classifies recorded connections: allowed, deviation or violation.
- Exceptions carry a reason and expire.
- You take the plan along as PDF or SVG and the data as a spreadsheet.
- 5przedsiębiorstwo/internet/chmura
- 4IT przedsiębiorstwa/ERP
- 3.5przemysłowa strefa DMZ
- 3zarządzanie operacyjne/MES/historian
- 2nadzór/HMI/SCADA
- 1sterowanie podstawowe/PLC
- 0proces/urządzenia polowe
Security levels
Target, achieved and gap per zone
You set the target per foundational requirement. Complass works out what your components bring.
- SL-T
- Your target per zone and foundational requirement.
- SL-C
- What an asset can do, with its source: vendor statement, certificate or own assessment.
- SL-A
- The lowest SL-C value of the assets in operation. If a rating is missing, the field stays open.
Security levels are part of the IEC 62443 framework.

Remote access
Whoever comes in from outside is in the register
Supplier, access path, second factor, four-eyes approval and expiry sit in one place per access. Complass reminds you of the review.

Complass looks at your zones before an auditor does
Does the partitioning fit what sits in the zone? Complass checks this per IEC 62443-3-2 and gives hints. You turn every hint directly into a measure.
Safety next to other systems
Safety functions share a zone with other assets, and the zone is not designated accordingly.
ZCR 3.3Wireless and temporarily connected devices
Such devices sit next to other assets. Complass recognizes them by name and model; you tick off a wrong hit with a reason.
ZCR 3.4, 3.5Remote access in the zone
Direct access, VPN or internet next to other assets. The route through a jump host does not count.
ZCR 3.6IT and OT mixed
Business IT and control systems sit in the same zone.
ZCR 3.2
You create the report “Security requirements of the zone” as PDF or Word and file it as evidence in the IEC 62443 project.
The inventory comes from your OT tools
Your OT monitoring already knows the devices. Complass takes them over instead of someone typing them in.
Your OT tool
Stays where it is and keeps its credentials.
Relay script in your network
A readable script. It reads the inventory and only sends outbound.
Complass
Turns it into assets with their origin. A person reviews new devices first.
- Nozomi
- Tenable OT
- Claroty CTD
- Defender for IoT
What arrives: Devices with vendor, model, firmware, serial number, addresses and Purdue level, as far as your tool delivers them.
What does not arrive: Alerts, traffic, vulnerabilities, risk scores and credentials. The script does not even ask for them.
How far this is tested: The connections follow the vendors’ interfaces; they have not yet run against a real plant. A dry run shows what you would get before the first sync, and uploads nothing.

IEC 62443 for every role
Asset owners, integrators and manufacturers have different jobs. That is why Complass keeps the standard in three frameworks.
- Operatorzy
System under consideration, zones and conduits, security levels.
- Integratorzy i usługodawcy
Requirements for your services per IEC 62443-2-4 and 3-3.
- Producenci
Secure development per IEC 62443-4-1, components per 4-2.
Bundle Przemysł
- IEC 62443 dla operatorów, integratorów i producentów
- Rozporządzenie w sprawie maszyn z wymaganiami cyberbezpieczeństwa dla układów sterowania
- Zarządzanie zasobami dla IT i OT
- MITRE ATT&CK dla Enterprise i ICS
All prices are on the packages page. No sales call needed.
Często zadawane pytania
Is Complass only for industry?
No. Complass is built for every sector. OT is where we go particularly deep. You run your office IT under ISO 27001 and your company under NIS2 in the same account.
Does Complass replace our OT monitoring?
No. Complass does not listen on the network and does not scan plants. It takes the inventory from your tool and turns it into your evidence.
Does Complass need access to our OT network?
No. The relay script runs on your side and only opens outbound connections. The credentials of your tool stay with you; Complass holds only a key that can do nothing but upload.
Does this work without an OT tool?
Yes. You take over assets from spreadsheets or CSV, including zone and Purdue level, or create them by hand.
A plan instead of the drawing on the wall
In the demo we show you zones, conduits and security levels at a sample plant and work out which tools suit you.