Information security mainly includes the following five aspects, namely, the need to ensure the confidentiality, authenticity, integrity, unauthorized copying and the security of parasitic systems. Information security itself includes a wide range, including how to prevent the leakage of commercial enterprise secrets, prevent teenagers from browsing bad information, and the leakage of personal information. The information security system in the network environment is the key to ensuring information security, including computer security operating systems, various security protocols, security mechanisms (digital signatures, message authentication, data encryption, etc.), and even security systems, such as UniNAC, DLP, etc. As long as there are security bugs, it can threaten global security. Information security refers to the protection of information systems (including hardware, software, data, people, the physical environment, and their infrastructure) from accidental or malicious causes, such as destruction, alteration, and leakage. The system operates continuously, reliably, and normally, and information services are not interrupted, ultimately achieving business continuity.