知识经济时代下,信息安全的重要性日益凸显,计算机技术便利了我们的生产生活,但是计算机网络信息安全问题却严重困扰着我们。应当针对现实中出现的问题,采取合理的策略对计算机网络信息安全进行防护。本文通过分析现阶段威胁计算机网络信息安全的主要因素,理论联系现实,探讨计算机网络信息安全与防护策略。 Under the age of knowledge-based economy, the importance of information security has become increasingly prominent. Computer technology has facilitated our production and living. However, the problem of information security in computer networks has seriously haunted us. Aiming at the problems appearing in reality, a reasonable strategy should be taken to protect the information security of computer network. By analyzing the main factors that threaten the information security of computer network at present, this paper discusses the information security and protection strategy of computer network by combining the reality with theory.