随着信息产业的高速发展,计算机信息网络已成为现代信息社会的基础设施,渗透到我们生活的各个角落,但由于计算机网络自身固有的脆弱性,网络信息安全问题也随之日益突出。本文就影响计算机网络系统安全的主要因素,结合实际进行防护分析,并提出相应的防范对策。 With the rapid development of information industry, computer information network has become the infrastructures of modern information society and infiltrated every corner of our life. However, due to the inherent vulnerability of computer network, the problem of network information security also becomes increasingly prominent. In this paper, the main factors affecting the security of computer network systems, combined with the actual protection analysis, and put forward corresponding preventive measures.