The client operated a legacy OT environment where SCADA, engineering workstations, PLCs, historian systems, and vendor access routes were connected with limited segmentation.
Fictionalised example
Case Study: OT Segmentation Review for Industrial Processing Site
Example scenario showing how a legacy OT environment can be reviewed and segmented without disrupting live systems.
Example scenarioNetwork segmentationZones and conduits
Placeholder
Client type
Examples on this website are fictionalised or anonymised to show typical problem types without identifying real clients, real sites, real drawings, or real project details.
Industrial processing operator
Challenge
Assessment and response
Risks identified
- weak separation between control and support systems
- unclear remote access paths
- limited asset documentation
- unmanaged network infrastructure
- poor visibility of critical interfaces
Meridian approach
- reviewed available architecture information
- identified key systems and communication paths
- developed a proposed zone and conduit model
- identified practical segmentation options
- produced a phased implementation strategy
Deliverables
- OT network review report
- zone and conduit model
- segmentation recommendations
- risk reduction action plan
- updated architecture drawings
Outcome
The client received a practical roadmap for reducing OT cybersecurity risk while maintaining operational continuity and avoiding unnecessary disruption to live systems.
Related service and resource pages
Continue through related service, problem and resource pages for the same OT cybersecurity topic.
Need a practical view of your OT cybersecurity risk?
Book a technical discovery call to discuss the control system, project stage, documentation gap, or assurance requirement without exposing sensitive site or client details.