关键词: 重大活动, 安全风险, 网络安全保障, 安全工程, 安全运维

Abstract: Network and information system has become the necessary infrastructure and guarantee of important activities, network security directly affects whether the important activities can be held successfully, which is payed high attention by the organizers and related network security departments. The research on the objectives, characteristics and framework of the important activity network security assurance, and proved by practice and improvement in the actual work, has formed the network security assurance method combining products and services, engineering implementation and security maintenance. It provides a reference for the network security protection of the important activities and critical information infrastructures.

Key words: important activities, security risk, network security assurance, security engineering, security maintenance