NERC CIP refers to the North American Electric Reliability Corporation Critical Infrastructure Protection standards. These rules define cybersecurity controls for bulk electric system assets, including access management, electronic security perimeters, logging, incident response, and monitoring. In practice, NERC CIP tells utilities how to protect systems that keep electricity flowing and how to prove those protections are in place.
It matters because power-grid environments mix legacy operational technology with modern networking, remote support, and shared infrastructure. Those changes increase the risk of unauthorized access, lateral movement, and hidden persistence inside trusted networks. NERC CIP helps defenders reduce that risk by requiring stronger identity controls, documented security plans, and visibility into internal activity, not just perimeter defenses. In real attacks, weak CIP practices can leave old devices, vendor paths, or edge assets easier to abuse. Strong CIP implementation does not eliminate all threats, but it raises the cost of intrusion and improves detection before attackers can reach critical control systems.