0引言网络系统中主要有两种网络入侵破坏形式,分别是信息泄漏和黑客攻击。这两种破坏形式都会使整个计算机网络系统遭到严重的破坏,导致系统完全瘫痪,使重要的文件和信息数据发生泄漏或丢失,并且还会发生通过线路进行非法窃听等严重危害网络安全的行为。网络安全网络技术、密码技术、通信技术、信息论以及计算机科学等。在计算机的网络系统中,必须对系统以及硬、软件进行严密的保护,防止计算机网络系统遭受恶意的破坏。由 0 Introduction Network system mainly has two forms of network invasion and destruction, namely information leakage and hacker attack. Both of these forms of damage can result in serious damage to the entire computer network system, complete system paralysis, leakage or loss of important documents and information data, and serious cyber-security behaviors such as illegal eavesdropping by wire . Network security network technology, password technology, communication technology, information theory and computer science. In the computer network system, the system and hardware and software must be closely protected to prevent the computer network system from malicious damage. by