In energy and cybersecurity: the information process and Information Communications Technology that form part of the operation of the Critical Infrastructure (CI) (NCSP 2023-2028)[.] In the energy sector, CII includes both the Information Technology (IT) and Operational Technology (OT) systems and assets, both physical and digital, that are essential for the reliable and secure operation of the energy supply and services, including power, oil and gas, and the utilization sector [Section 3(e), DOE Department Circular No. DC2025-01-001, Institutionalizing the Energy Sector Cybersecurity and Cyber Resilience Framework]
