Operating Systems Security - The operating system is the core of the smart power terminal. It is designed to strengthen security from five aspects: terminal container security, system security, security audit, communication protocol security, and hardware access control. By formulating a verification strategy, a comparative security test was carried out for the security hardening and non-security hardening operating systems of smart power terminals, and a detailed comparison test table was formed, demonstrating the importance of security hardening and security hardening for the operating systems of smart power terminals The advantages. The security-hardened operating system can effectively ensure the security of the operating environment of the terminal body and prevent illegal access by malicious programs.