Cybersecurity for IT/OT Systems: Risk Assessment, NIS2 Gap Analysis, and IEC 62443 Compliance

NIER’s Cybersecurity service is designed to help organizations protect systems, networks, and data in a concrete and structured way, going beyond the purely technical component to embrace a holistic approach that involves infrastructure, processes, and people.

The security assessment and improvement journey begins with a detailed understanding of the existing setup through vulnerability analysis and risk assessments, and continues with the identification and implementation of appropriate countermeasures to strengthen operational security, communication protection, and continuous activity monitoring.

This approach takes into account both traditional IT aspects and the specific characteristics of industrial control systems, where ensuring process integrity, availability, and resilience is essential.

Within this integrated strategy, NIER also performs Gap Analysis and Risk Assessment in line with NIS2, systematically measuring organizational compliance with the directive’s requirements and defining a risk- and priority-based remediation plan.

This enables companies to align their cybersecurity model not only with European regulatory requirements, but also with international best practices, such as those defined by the IEC 62443 standard for the cybersecurity of industrial automation and control systems, which provides a reference framework for protecting and managing risks in OT environments and integrating them with overall risk management activities.

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