Bringing security and connectivity together to enable safer systems and smarter operations
As industrial systems become more connected, cyber security is critical to safe and reliable operations. Risk now spans control systems, networks and business platforms, with direct impact on uptime, safety and performance. FAIRFIELDS delivers practical, risk-based cyber security across IT and OT environments, aligned to how systems are designed, operated and maintained.
As industrial systems become more connected, cyber security is critical to safe and reliable operations. Risk now spans control systems, networks and business platforms, with direct impact on uptime, safety and performance. FAIRFIELDS delivers practical, risk-based cyber security across IT and OT environments, aligned to how systems are designed, operated and maintained.
Cyber security is not a one-size-fits-all solution. For some organisations it is driven by legislation such as NIS, NIS2 and emerging regulation, while for others it is about protecting operations, reducing risk and ensuring long-term resilience.
FAIRFIELDS supports both. We take a structured, risk-based approach that balances compliance with practicality, helping organisations prioritise investment, reduce exposure and build cyber security into the full system lifecycle.
Our cyber security services support the full lifecycle of industrial systems, from risk assessment through to long-term protection:
• Asset discovery and system architecture definition
• High-level and detailed risk assessments
• Gap analysis against ISA/IEC 62443 (SL-A vs SL-T)
• Risk-based security strategies and prioritisation
• Network design and segmentation
• Security policies and procedures
• System hardening and secure configuration
• Secure remote access solutions
• Patch management and update strategies
• Monitoring and response strategies
• Cyber security management systems (CSMS)
• Training and awareness programmes
But what does it included?
Risk Based Approach
Cyber security must be proportionate to the risks faced. We work with clients to understand operational impact, define risk tolerance and prioritise investment where it matters most.
Rather than applying generic controls, we focus on reducing the highest risks first, ensuring time and budget are directed effectively while building a clear, structured path towards improved security maturity.
Compliance And Regulation
Cyber security requirements are increasingly driven by regulation, including NIS, NIS2, NIST and the upcoming Cyber Security & Resilience Bill.
We support organisations in understanding their obligations and aligning to recognised standards such as ISA/IEC 62443 and ISO 27001, ensuring compliance is achieved in a practical and achievable way.
Full Lifecycle Delivery
Cyber security must be considered across the entire system lifecycle, not added after implementation.
We support assessment, design, implementation and ongoing maintenance, ensuring security is embedded from the outset and maintained over time. This structured lifecycle approach reduces risk, improves resilience and ensures systems remain secure as they evolve.
Secure System Design
We design secure architectures that align with operational requirements and industry standards.
This includes network segmentation, zoning strategies, policy definition and secure system structures. By embedding security into the design phase, we ensure solutions are robust, maintainable and aligned with how systems are operated in practice.
Practical Implementation
Security controls in industrial environments can be disruptive if applied without consideration.
We take a practical, risk-based approach, balancing usability, cost and security while maximising system availability. This includes system hardening, secure configuration, controlled remote access and network protections, applied in a way that aligns with operational constraints and minimises unnecessary impact.
Monitoring And Maintenance
Cyber security is an ongoing requirement, not a one-off activity.
We provide patch management strategies, system monitoring and lifecycle support to ensure systems remain protected as threats evolve. This long-term approach reflects the realities of industrial environments, where systems must remain secure while continuing to operate reliably over extended lifecycles.
IT And OT Integration
Effective cyber security requires alignment between IT and OT teams.
We help break down traditional barriers, improving visibility, accountability and collaboration across disciplines. Through structured engagement and training, we support organisations in developing a joined-up, sustainable cyber security strategy.
Specialist Industrial Expertise
Our dedicated Industrial ICT team combines IT, networking and operational technology expertise.
With certified ISA/IEC 62443 specialists and ISO 27001 and Cyber Essentials Plus accreditation, we deliver cyber security grounded in recognised standards, applied with real engineering understanding of industrial systems and environments.