This secondary cybersecurity upgrade project was carried out to strengthen the security of power monitoring systems and to protect them against cyber threats such as hacker intrusion and malicious code attacks—particularly coordinated large-scale attacks that could lead to system disruption, operational paralysis, or even power equipment incidents and grid security events. The project was implemented in accordance with national requirements set out in the Regulations on the Security Protection of Power Monitoring Systems.

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The overall cybersecurity framework for power monitoring systems follows four core principles: security zoning, dedicated networks, horizontal isolation, and vertical authentication. The scope of protection covers power monitoring systems used to supervise and control power generation and supply processes, including computer- and network-based operational systems, intelligent devices, and the supporting communications and data networks behind them. The project focused on strengthening boundary protection while also enhancing physical, network, host, application, and data security, together with improvements in security management, organizational mechanisms, personnel, system construction, and O&M practices, in order to improve the overall cybersecurity capability of the system and safeguard critical operational data.

In line with the Overall Security Protection Plan for Power Monitoring Systems and relevant State Grid requirements on accelerating the development of cybersecurity management platforms, the project included the deployment of network security monitoring devices, intrusion detection systems, malicious code audit systems, and security audit systems. These measures help ensure secure access to secondary systems, provide clear operational logs for transmission activities, and enable centralized collection, storage, and analysis of automatically recorded log data from network-connected equipment. The project covered six centrally dispatched stations—Guanyun Wind Power, Binhai Wind Power, Xinghua PV (Shagou), Xinghua PV (Lizhong), Jinhu PV, and Dayi PV—as well as nine non-centrally dispatched stations: Ganyu PV, Donghai PV, Jiangyan PV, Baoying PV, Taixing PV, Dongtai PV, Hualin PV, Rudong PV, and Chenji PV.