Introduction
Gas processing plants play a vital role in the natural gas value chain by separating methane from other hydrocarbons, removing impurities, recovering natural gas liquids, and preparing gas for transportation, storage, and downstream applications. These facilities rely on complex industrial environments where Operational Technology (OT), Industrial Control Systems (ICS), and process automation work together to maintain safe, reliable, and continuous operations.
In the United Kingdom, gas processing facilities support critical energy infrastructure and depend on interconnected technologies to monitor pressure, temperature, flow rates, gas composition, and equipment performance. Distributed Control Systems (DCS), Programmable Logic Controllers (PLCs), Supervisory Control and Data Acquisition (SCADA) systems, Human-Machine Interfaces (HMIs), and safety instrumented systems help operators manage essential processes.
As industrial operations become increasingly connected to enterprise networks, remote monitoring platforms, engineering workstations, and third-party service providers, cybersecurity risks can extend beyond traditional IT environments. Threats such as ransomware, unauthorized access, insecure remote connections, outdated firmware, and compromised engineering systems may affect plant availability, process integrity, and operational safety.
An OT security assessment for gas processing plants in the United Kingdom helps identify weaknesses in industrial networks, control systems, and supporting infrastructure before they develop into significant operational risks. A structured assessment evaluates the security of connected assets while considering the availability, reliability, and safety requirements of industrial processes.
Cyberintelsys supports organizations in understanding their OT security posture, identifying vulnerabilities, evaluating cybersecurity controls, and prioritizing practical remediation measures suited to industrial environments.
Regulatory Standards and Cybersecurity Frameworks for Gas Processing Plants
Gas processing facilities should consider applicable cybersecurity requirements, contractual obligations, operational risks, and internationally recognized security frameworks. Regulatory applicability may vary depending on the facility’s location, ownership, operational activities, infrastructure, and applicable industry requirements.
An effective OT security assessment can be aligned with relevant international standards and cybersecurity guidance to help organizations establish appropriate security controls, manage risks, and strengthen the protection of industrial control environments.
Important references include:
NIST Cybersecurity Framework (CSF): Provides a risk-based approach to identifying critical assets, protecting systems, detecting cybersecurity events, responding to incidents, and recovering operations.
NIST SP 800-82: Offers guidance for securing Operational Technology (OT) and Industrial Control Systems (ICS), including DCS, PLCs, SCADA systems, and other industrial automation technologies.
ISA/IEC 62443: Provides internationally recognized standards for industrial automation and control system cybersecurity, covering risk assessment, system security, network segmentation, and lifecycle security management.
ISO/IEC 27001: Establishes requirements for an information security management system, supporting organizational governance, access management, risk treatment, and continuous security improvement.
Where applicable, facilities should also evaluate relevant national and regional regulatory requirements, government cybersecurity guidance, contractual obligations, and industry-specific directives. The applicability of these requirements should be determined based on the facility’s location, operational scope, asset classification, and relevant regulatory framework rather than assuming that requirements designed for pipelines, electric utilities, or other regulated infrastructure automatically apply to every gas processing plant.
These standards and frameworks provide a structured basis for assessing industrial cybersecurity controls, identifying security gaps, prioritizing remediation activities, and improving the resilience of gas processing operations across different countries and regulatory environments.
Importance of OT Security Assessment for Gas Processing Plants
Gas processing plants operate with interconnected control systems and safety-critical equipment. A cybersecurity weakness in one part of the industrial network may create risks for other connected systems, depending on the plant’s architecture and existing security controls.
A comprehensive OT security assessment helps organizations identify these weaknesses and establish appropriate protection measures.
1. Protecting Industrial Control Systems
DCS, PLCs, SCADA systems, and HMIs support essential processing activities. Unauthorized access, insecure configurations, and exploitable vulnerabilities can affect process monitoring and control. Assessments help identify security gaps that could compromise these systems.
2. Reducing Operational Disruptions
Cybersecurity incidents can interrupt processing activities, delay production, and increase recovery costs. Evaluating network architecture, access controls, and system vulnerabilities helps operators reduce the likelihood and potential impact of avoidable disruptions.
3. Securing Industrial Network Communications
Gas processing plants may connect control networks with business systems, remote maintenance environments, and external service providers. Assessments examine whether these connections are appropriately restricted, monitored, and protected against unauthorized access.
4. Strengthening Safety-Related Protection
Industrial cybersecurity and process safety are closely connected. Although cybersecurity assessments do not replace functional safety evaluations, they can identify weaknesses that could affect the availability or integrity of safety-related systems. Assessment activities must be planned carefully to avoid disrupting safety functions.
5. Supporting Risk Management and Compliance
Organizations need a clear understanding of their cybersecurity risks to make informed investment decisions. Assessment findings provide evidence for prioritizing remediation, improving security governance, and demonstrating alignment with applicable frameworks and organizational requirements.
6. Improving Incident Preparedness
Reviewing logging, monitoring, incident response procedures, backup arrangements, and recovery plans helps organizations understand whether they can detect and respond to cybersecurity events affecting industrial operations. CISA’s industrial control systems guidance provides additional recommendations for strengthening defensive measures.
Our Methodology for Gas Processing Plants
1. Asset Identification and Scope Definition
The assessment begins by identifying critical OT assets and defining the assessment scope based on the plant’s operational requirements.
Identify control servers, PLCs, engineering workstations, HMIs, network devices, and remote access gateways.
Review asset inventories and network diagrams to determine assessment boundaries.
Identify critical systems that require additional protection.
2. Industrial Network Architecture Review
This stage evaluates industrial network architecture to identify weaknesses in connectivity and network segmentation.
Review communication paths between control zones and enterprise networks.
Examine firewall configurations and network segmentation.
Identify unnecessary connections and potential weaknesses in IT and OT separation.
3. Vulnerability Assessment and Configuration Review
Technical assessments help identify vulnerabilities and insecure configurations that could expose industrial systems to cybersecurity threats.
Identify known vulnerabilities, outdated firmware, and insecure configurations.
Review unnecessary services and exposed network ports.
Select appropriate testing methods based on system sensitivity and operational constraints.
4. Access Control and Remote Connectivity Assessment
This stage examines access management practices to reduce the risk of unauthorized access to industrial systems.
Review user accounts, privileged access, and authentication mechanisms.
Assess vendor connections and remote maintenance arrangements.
Evaluate access restrictions, session monitoring, and logging procedures.
5. Risk Analysis and Remediation Planning
Assessment findings are analyzed to establish risk priorities and develop practical recommendations for improving cybersecurity.
Evaluate vulnerabilities based on technical severity, asset criticality, and operational impact.
Document findings with risk ratings and supporting evidence.
Provide prioritized remediation recommendations and improvement plans.
Our Services for Gas Processing Plant Cybersecurity
1. OT Security Assessment
This service evaluates the overall cybersecurity posture of industrial control environments to identify weaknesses that could affect operational reliability and system security.
Assess industrial control systems, connected assets, and existing security controls.
Review OT network architecture and system configurations.
Identify cybersecurity gaps affecting system integrity and availability.
2. Vulnerability Assessment and Penetration Testing
These services help identify technical vulnerabilities and evaluate potential attack paths within an explicitly authorized assessment scope.
Vulnerability Assessment (VA): Identify known vulnerabilities, insecure configurations, outdated software, and exposed services.
Penetration Testing (PT): Evaluate whether identified weaknesses can be exploited and determine potential security implications.
Apply testing methods appropriate for sensitive OT environments to minimize operational disruption.
3. Industrial Network Security Assessment
This service examines industrial network defenses to identify connectivity weaknesses and reduce opportunities for unauthorized access.
Review network segmentation, firewall rules, and industrial communication protocols.
Assess connections between OT and enterprise networks.
Recommend measures to restrict unnecessary connectivity and unauthorized network movement.
4. DCS, PLC, SCADA, and HMI Security Review
This service focuses on the security of industrial automation and control platforms responsible for monitoring and managing processing operations.
Review security configurations and access controls.
Identify weaknesses in control system interfaces and engineering workstations.
Recommend improvements to protect process monitoring and control functions.
5. Remote Access and Privileged Access Review
This service evaluates remote connectivity and administrative access practices to strengthen accountability and prevent unauthorized system access.
Review third-party access and remote maintenance connections.
Assess privileged accounts, authentication controls, and user permissions.
Recommend stronger access restrictions, monitoring, and approval procedures.
6. OT Risk Assessment and Remediation Guidance
This service helps organizations understand their cybersecurity risk exposure and prioritize improvements according to operational requirements.
Evaluate identified risks based on asset criticality and potential operational consequences.
Prepare prioritized findings and practical remediation recommendations.
Develop improvement roadmaps to support ongoing OT cybersecurity management.
Why Choose Cyberintelsys?
Gas processing environments require cybersecurity assessments that recognize the relationship between industrial automation, operational continuity, and safety.
Cyberintelsys is a CREST-accredited cybersecurity company for Vulnerability Assessment (VA) and Penetration Testing (PT), delivering industry-recognized security testing services for organizations across multiple sectors.
Organizations can benefit from an assessment approach focused on:
OT and ICS expertise: Evaluating industrial control environments and their associated cybersecurity risks.
Independent security assessments: Identifying weaknesses through structured, evidence-based evaluation.
Risk-based analysis: Prioritizing findings according to technical severity and potential operational impact.
Actionable remediation recommendations: Providing practical guidance to support security improvements and remediation planning.
Operationally conscious testing: Considering system availability, plant safety, and agreed testing boundaries when selecting assessment methods.
This approach helps organizations gain a clearer understanding of their security posture and make informed decisions about protecting critical industrial assets.
Contact Cyberintelsys
Gas processing plants depend on secure and reliable industrial systems to maintain process integrity, operational continuity, and safe facility performance. Identifying cybersecurity weaknesses before they are exploited is an important part of protecting these environments.
Cyberintelsys helps organizations assess OT and ICS security risks, evaluate vulnerabilities, strengthen industrial network defenses, and develop practical remediation strategies aligned with applicable cybersecurity frameworks.
Contact Cyberintelsys to discuss an OT security assessment for your gas processing plant in the United Kingdom. Strengthen your industrial cybersecurity posture, reduce operational risks, and take a proactive approach to protecting critical control systems.
