OT CyberSecurity & Resilience
Practical cybersecurity for industrial automation and process control
Industrial control systems are increasingly connected to business networks, remote support services and external systems. While this connectivity brings significant operational benefits, it also introduces cybersecurity risks that must be considered alongside traditional engineering requirements.
At Control Solutions Ltd., we have been designing, developing, commissioning and supporting industrial automation systems since 1993.
Our approach to OT cybersecurity builds on this experience, combining an understanding of industrial processes with recognised cybersecurity principles to improve the security, reliability and resilience of control systems.
Our focus is on protecting industrial operations without compromising process safety, availability or maintainability.
Understanding OT Cybersecurity
Operational Technology (OT) differs from conventional Information Technology (IT).
Industrial control systems often operate continuously, control physical processes and depend on equipment that may remain in service for decades.
Cybersecurity measures that are appropriate for conventional IT environments may not always be suitable for operational systems.
A security update, network restriction or change to remote access arrangements can have unintended consequences for production, equipment operation or personnel safety.
Effective OT cybersecurity therefore requires an understanding of both the technology and the industrial process it supports.
Our Areas of Focus
Secure PLC, HMI and SCADA Engineering
Cybersecurity should be considered throughout the design, development and commissioning of industrial automation systems.
Our engineering approach considers:
Secure configuration of PLCs, HMIs and SCADA systems.
Protection against unauthorised access and configuration changes.
Industrial communications and network connectivity.
Software integrity, version management and system backups.
Identification of security-related engineering dependencies.
Documented configuration, testing and handover.
We work with established industrial automation platforms, including Siemens SIMATIC and AVEVA systems.
Secure Remote Access
Remote access is essential for supporting many industrial installations, but it also introduces potential security vulnerabilities.
Control Solutions has extensive experience providing remote engineering and technical support to industrial control systems.
We work with customers and their IT/OT teams to evaluate remote access requirements, appropriate connectivity solutions and access restrictions while maintaining the ability to provide effective operational support.
Legacy Systems and Operational Resilience
Many industrial facilities depend on automation equipment and software that have been operating reliably for years.
Replacing these systems is not always practical or economically justified.
Improving resilience may involve reviewing network connectivity, access arrangements, system backups, recovery procedures and the dependencies associated with older equipment.
Our experience maintaining and modernising existing PLC and SCADA installations provides a practical foundation for identifying these issues and considering appropriate improvements.
Cybersecurity Documentation and Engineering Practices
A documented approach to cybersecurity helps establish which security measures have been considered, implemented and verified.
Control Solutions is formalising its OT cybersecurity engineering procedures, including secure configuration practices, engineering risk considerations, software management and technical handover documentation.
These procedures are being developed alongside our ongoing industrial automation activities, providing a practical basis for their implementation and continued improvement.
Cybersecurity Standards and Regulatory Developments
Industrial cybersecurity requirements continue to evolve.
The introduction of the EU Cyber Resilience Act (CRA), alongside existing cybersecurity legislation and industry standards, is increasing the importance of secure engineering and clearly defined responsibilities.
Our approach is informed by recognised OT cybersecurity guidance, including:
IEC 62443 — Cybersecurity for industrial automation and control systems.
NIST SP 800-82 — Guidance on securing operational technology.
EU Cyber Resilience Act — Cybersecurity requirements for products with digital elements.
We recognise the importance of distinguishing between product-manufacturer obligations, engineering responsibilities and the operational cybersecurity responsibilities of asset owners.
Our objective is to incorporate appropriate cybersecurity considerations into our engineering work while clearly identifying the scope and limitations of the services provided.
An Engineering-Led Approach
Cybersecurity cannot be considered independently of the industrial process.
Understanding PLC operation, industrial communications, process dependencies and the consequences of system failure is fundamental to identifying and managing OT cybersecurity risks.
Control Solutions combines over 30 years of practical automation engineering experience with an increasing focus on secure system design, operational resilience and cybersecurity good practice.
We work alongside plant engineers, maintenance teams, IT departments and other contractors to develop practical solutions suited to the requirements of each installation.
Our aim is straightforward: industrial control systems that are reliable, maintainable and appropriately secured.
Discuss Your OT Cybersecurity Requirements
Whether you're developing a new automation system, modernising an existing installation or reviewing remote access and system resilience, Control Solutions can help you examine the engineering considerations.
Contact Control Solutions Ltd.
Email: systems@controlsolutions.ie
Automation
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