Abstract
This paper studies a new network information security system and its evaluation method based on the security threat situation network security model. This paper expounds the application of active defense system and passive defense system in network security, and uses advanced technical support platform and network security model. In this paper, the active defense system and the passive defense system are organically combined to form a new model of computer network security with characteristics. At the same time, based on the idea of security threat situation evaluation, this paper extends the traditional PDRR security model and proposes a network active defense security model and defense in depth security strategy. On this basis, a hybrid architecture of active and passive defense is proposed. The architecture integrates some new network active defense technologies, and constructs a comprehensive and deep network defense system together with network passive defense means. The experimental results show that the proposed defense model improves the security defense efficiency and effective defense rate of the traditional PDRR security model.
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