Dedicated operational technology security operations centre (OT SOC) “A specialized approach to monitoring, threat detection, and incident response tailored to OT environments”

Operational Technology (OT) environments within power utilities, as the increasing digitalization and convergence of Information Technology (IT) and OT systems introduce complex and severe security risks that traditional IT security approaches cannot fully address.

Establishing a dedicated Operational Technology Security Operations Centre (OT SOC) is essential for safeguarding critical infrastructure and ensuring operational resilience.

The paper reviews the distinct challenges, such as the unique priorities of safety, reliability, and availability in OT systems, and the heightened risks posed by IT/OT convergence, including increased exposure to cyber threats and the limitations of legacy OT devices.

It proposes a distributed OT SOC architecture, where local SOC nodes embedded in operational centres are coordinated by a global OT SOC, enabling specialized monitoring, analytics, and incident response tailored to industrial control systems. The integration of specialized technologies, processes, and personnel is emphasized, along with the importance of carefully managed data sharing between OT and enterprise SOCs to enhance holistic threat detection and compliance. The paper also addresses key challenges in building an OT SOC, such as the need for skilled personnel, regulatory constraints, and organizational adaptation, and provides recommendations for power utilities to strengthen their cybersecurity posture against evolving threats. Drawing from experience, lessons learned and on international case studies, the paper concludes that a dedicated, distributed OT SOC is imperative for the resilience and security of modern power grids.