With the gradual implementation of "Industry 4.0",the critical information infrastructure in hydropower plants has become increasingly digitalized,intelligent,and networked. However,this progress is accompanied by more severe cybersecurity challenges. This paper provided a brief overview of the application and role of cybersecurity technologies in critical information infrastructure for hydropower plants. It analyzed the current shortcomings of security protection technologies,elaborated on a trusted security architecture for new critical information infrastructure,and proposed an integrated strategy to enhance the security of critical infrastructure. Additionally,it offered a perspective on the future of security protection technologies,providing theoretical and practical references for improving the cybersecurity level of critical information infrastructure in hydropower plants.
hydropower plantscritical information infrastructuresecurity protection technologies