Why Energy Sector OT Security Is Uniquely Complex
Energy organisations — power generators, grid operators, water utilities, oil and gas producers — operate some of the most complex OT environments in existence. SCADA systems controlling grid substations, DCS systems managing refinery processes, and ICS networks operating water treatment facilities were designed for availability and safety — not for cyber security. Most were designed before modern cyber threats existed.
NIS2 has changed the regulatory context: energy organisations are essential entities under the Directive, subject to the most demanding security requirements and the most intensive supervisory attention. The Directive applies to both IT and OT systems, and energy sector OT environments are specifically highlighted in NIS2 implementation guidance as requiring dedicated security attention beyond standard IT security controls.
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