Cyber security in industrial environments is often treated as a bolt-on or an afterthought layered onto existing systems to tick boxes and meet minimum regulatory compliance. But for critical infrastructure, this approach is not just inefficient, it can compromise safety, reliability, and long-term asset performance.
Cyber Security
Practical and proportionate OT cyber risk mitigation.
We bridge the gap between OT cyber risk and operational reality. That means governance people can follow, requirements that are deliverable, and countermeasures that protect assets without adding unnecessary complexity.
OUR VALUE
Practical Protection
At ICSS, we do cyber security differently. We approach security the way we approach engineering: from first principles, grounded in reality, and focused on outcomes. We understand that cyber security is not just about compliance, it's about keeping your operations safe, resilient, and running through every phase of the asset lifecycle.
We focus on practical, workable solutions, not just theory. Our strategies are tailored to each client's specific systems, risks, and constraints. We remain hands-on throughout, taking ownership, and ensuring cyber security risks are mitigated both effectively and efficiently.
Built In, Not Bolted On
In greenfield environments, we embed security at the heart of system design. Our engineers bring both cyber expertise and operational experience to shape system architectures that are inherently secure, maintainable, compliant, and without introducing unnecessary complexity.
We integrate cyber security strategies into the overall engineering process, aligning control philosophies, network segmentation, user access models, and asset inventory approaches into a unified framework. Because our teams have experience across the full lifecycle, we understand which controls will work, which fall short in practice, and which become a long-term burden.
We often act on behalf of the end client to oversee vendor activities, define enforceable cyber requirements, and assure implementation. By getting it right early, we reduce rework, eliminate late-stage surprises, and ensure protection from the start.
Bridging the Gap
In the operating phase, cyber security becomes more than a design issue, it becomes a live risk. Unlike traditional consultancies focused on assessments and paperwork, we are delivery-focused. We implement improvement programmes that harden live systems while keeping operations online.
Our strength lies in bridging the IT/OT gap. We translate cyber risk into operational context, so plant teams can understand the implications, buy into the solution, and contribute meaningfully to its success. We deploy countermeasures in real-time, with full understanding of system constraints, process safety requirements, and operational risk.
We also help clients avoid waste. By demystifying regulations and applying engineering judgement, we ensure security solutions are proportionate, appropriate, and sustainable. The result is smarter investment, reduced overhead, and protection that aligns with operational need.
Streamlined Security
As assets enter late-life operation or prepare for decommissioning, the cyber risk profile evolves. While legacy systems can become harder to secure effectively, the potential impact of a cyber incident often decreases.
At ICSS, we help clients assess cyber risk in the context of reduced activity, aging infrastructure, and evolving requirements. Our engineers develop cost-effective, risk-aligned cyber strategies to keep systems secure without overspending. We streamline monitoring, simplify controls, and apply targeted countermeasures to maintain compliance and operational integrity through the final phase of life.
We identify what must be protected, simplify what can be reduced, and ensure a controlled, risk-managed exit.
The ICSS Difference
We deliver practical cyber security that performs in real-world operational environments. Our team is more than a group of subject matter experts. We are engineers, integrators, and operators who understand the demands of live systems and the realities of delivery.
We lead with strategy, execute with confidence, and design with the full lifecycle in mind.
Because cyber security isn't just about compliance. It's about effective protection and staying operational.
OUR APPROACH
01
Governance & Strategy
We establish a structured, risk-informed governance model tailored to industrial environments. This includes policies, roles, escalation paths, and oversight frameworks that align with IEC 62443 and client-specific needs.
We demystify the governance layer, ensuring policies are practical, proportionate, and adopted by the entire organisation, not just security specialists. We embed cyber governance into your existing operational management systems, not beside them.
02
Zones & Conduits
We identify the System under Consideration (SuC) and conduct high-level risk assessments to understand its critical functions and exposure. We then segment the system into logical and physical zones and data flow conduits.
Our understanding of industrial control systems ensures that segmentation is not only effective, but also practical to implement and operate. We go beyond network drawings to engineer architectures that are robust, maintainable, and tailored to the realities of each environment.
03
Risk Assessment
We perform detailed risk and threat assessments, identifying system vulnerabilities, threat actors, and potential impacts across zones and conduits. This step identifies the required risk reduction and lays the foundation for all future decision-making.
Our assessments bridge IT and OT, reflecting both technical risks and operational realities. We focus on what's likely to happen, not just what's theoretically possible, and help clients make informed, cost effective, and risk-based investment decisions.
04
Security Requirements
We translate assessed risks into precise, testable cyber security requirements for systems, software, and vendor packages that is aligned with standards and good practice.
We remove ambiguity and write requirements that vendors and site personnel can actually deliver. By acting as design authority, we ensure the security requirements are both enforceable and appropriate to the asset lifecycle phase.
05
Countermeasures
We design, implement, and deliver the required technical controls and countermeasures, from firewalls and remote access gateways to endpoint hardening, patch management, and anomaly detection systems.
We excel at live deployment in operational environments. While many others stop at recommendations, we deliver solutions through to site implementation. Our ability to work within operational and technical constraints means effective protection without unplanned downtime.
06
Manage & Verify
We implement ongoing compliance monitoring using manual and automated processes, aligning with regulatory expectations and organisational risk tolerances.
We treat compliance as an ongoing responsibility, not a one-time exercise. We give you practical, lightweight compliance mechanisms, dashboards, reports, and KPIs that help you continuously demonstrate security and guide your operational teams.
07
Training & Culture
We deliver targeted training for operations, engineering, and management teams, focusing on what they need to know, in the context they operate in.
Our trainers and assessors are engineers and security experts. We don't talk in abstract policy, we teach real-world cyber security with hands-on relevance, creating a stronger, more resilient culture from the plant floor to the boardroom.
08
Monitor & Respond
We implement monitoring systems and define incident response processes tailored to the OT context, including detection, triage, recovery, and post-incident review.
We give clients more than a plan. We help them build real-world readiness. Our incident response strategies are practical, field tested, and fully consider vendor processes, interfaces and technologies. This ensures that if an incident occurs, responses are fast, structured, and executable in practice.
Start Here
Need help with a cyber security project or improvement programme?
Tell us what you are trying to protect across greenfield projects, brownfield upgrades, or late-life assets. We will help shape the scope, de-risk the decision, and define a practical route to resilient operations.