Industry
Offshore & Process Industries
Assurance for vendor package systems, remote support links, strict change control, safety interfaces, and constrained maintenance windows.
Sector context
Offshore and process environments depend on safe, reliable and controlled operation. Cybersecurity decisions must consider production availability, process safety, environmental risk, maintenance access and the realities of operating in remote or hazardous environments.
This includes offshore platforms, FPSOs, terminals, chemical plants, petrochemical facilities, compression systems, process packages and safety-related control environments.
Examples on this page are fictionalised, generalised or anonymised to show typical problem types without identifying real clients, real sites, real drawings, real systems or confidential project details.
Common OT cybersecurity problems in offshore and process industries
- Legacy BPCS, SIS, F&G, ESD and package control systems
- Vendor-maintained systems with unclear access routes
- Limited bandwidth or restricted offshore connectivity
- Mixed responsibility between operator, EPC, integrators and vendors
- Cybersecurity requirements introduced late in project delivery
- Weak separation between control, safety and support networks
- Limited evidence for audits, assurance reviews, FAT, SAT and handover
- Vendor package review
- FAT/SAT cybersecurity verification
- Network architecture review
- Cybersecurity risk assessment
- IEC 62443 support
- Engineering assurance
The common struggle
Offshore and process sites often have complex OT estates made up of control systems, safety systems, package vendor systems, historians, operator workstations, engineering stations, remote support links and communications infrastructure.
Many systems are long-life assets. They may be reliable, but not always easy to patch, segment, monitor or evidence. The concern is not only data loss; it can include loss of control, unsafe operating conditions, production interruption, environmental release or delayed recovery.
Stakeholders involved
Offshore and process cybersecurity involves a wide stakeholder group. Meridian approaches OT cybersecurity as an engineering and assurance problem, not just an IT problem.
- Operations need stable plant control
- Safety teams need confidence that cybersecurity controls will not undermine safety functions
- Engineering teams need technically defensible designs
- Maintenance teams need controlled but workable access
- Project managers need clear deliverables
- Vendors need defined requirements
- Assurance teams need evidence that risks have been considered and reduced proportionately
How Meridian can help
Meridian Consultants supports offshore and process organisations by reviewing OT cybersecurity risks against practical operational constraints.
The focus is on defensible, proportionate improvement that supports safe and reliable operation.
- OT cybersecurity readiness reviews
- IEC 62443-aligned SuC definition, zones and conduits
- BPCS, SIS, F&G, ESD and package interface reviews
- Remote access and vendor support assessments
- Network architecture and segregation reviews
- Cybersecurity requirements for vendor packages
- FAT, SAT and commissioning evidence support
- Cybersecurity risk assessment support
- Audit response and evidence gap reviews
Practical outcome
A useful review should support safe, controlled and evidence-led decision-making.
- Which systems are in scope
- Where safety and control interfaces need stronger segregation
- How vendors access the OT environment
- What evidence is missing for assurance
- Which controls are realistic for the asset
- What should be addressed now and what should be planned into future outages or upgrades
Illustrative scenario
Example scenario: An offshore process facility required cybersecurity assurance for several package control systems being integrated into a wider platform control network.
The objective was to review package interfaces, clarify supplier access assumptions and define evidence needed for FAT, SAT and project close-out.
Related OT cybersecurity topics
Continue through related service, problem and resource pages for the same OT cybersecurity topic.
Discuss offshore & process industries OT cybersecurity
Book a technical discovery call to discuss the control system, project stage, documentation gap or assurance requirement without exposing sensitive site or client details.