A Framework for the Implementation and Optimization of Classified Cybersecurity Protection in Electric Power Critical Information Infrastructure

Abstract

Amidst the era of rapid information technology advancement and the deep integration of digital systems with critical infrastructure, the power industry faces increasingly severe cybersecurity challenges. The stability and security of the power grid, as a national critical infrastructure, are paramount to societal and economic well-being. This paper systematically examines the application and implementation of the Cybersecurity Level Protection (CLP) framework within the power industry. It begins by summarizing the core concept of the CLP scheme and its associated legal, regulatory, and standard requirements. A critical analysis of the current cybersecurity posture in the power sector reveals significant shortcomings, including an incomplete multi-layered security protection architecture, insufficient security awareness among personnel, and inadequate emergency response capabilities for cyber incidents. In response to these identified gaps, this paper provides a detailed discussion on the strategic implementation of the CLP framework. The discussion focuses on four pivotal areas: the precise and rational classification of information systems according to mandated protection levels; the systematic construction of a robust, tiered technical security protection system encompassing network, host, and application security; the establishment of a comprehensive security management system with clear policies, responsibilities, and accountability mechanisms; and the enhancement of continuous security operation, maintenance, and monitoring capabilities. Synthesizing these analyses, the paper ultimately proposes a holistic set of improvement measures across four interconnected dimensions: (1) Technology, advocating for the deployment of advanced threat detection, intrusion prevention, and security analytics platforms; (2) Management, emphasizing rigorous risk assessment, mandatory security training, and strict compliance audits; (3) Emergency Response and Recovery, focusing on the development of detailed incident response plans, regular drills, and reliable data backup strategies; and (4) Cooperation and Sharing, promoting information sharing and collaborative defense initiatives within the industry and with national cybersecurity agencies. The overarching aim of these integrated strategies is to comprehensively elevate the cybersecurity maturity of the power industry, thereby fundamentally ensuring the safe, stable, and resilient operation of the power system in the face of evolving cyber threats.