Abstract
This paper analyzes the attack and defense model in network security. For attack models, this paper focuses on Distributed Denial of Service (DDoS), Advanced Persistent Threat (APT), Man-in-the-Middle Attack (MITM), Trojan House, and Cross Site Script Attack (XSS). For each attack model, this article analyses the attack principle and attack effect and summarizes the advantages and disadvantages of various attack models. In the defense model, this paper studies policy, protection, detection, response (P2DR) and the zero-trust model. This paper introduces the basic principle and defense strategy of the P2DR model and analyzes the advantages and disadvantages of this model. At the same time, this paper also introduces the concept and basic principle of the zero-trust model and analyzes its advantages over the traditional security model. The comprehensive analysis shows that different defense strategies need to be adopted for different attack models. When choosing a defense model, it is necessary to choose the most suitable model according to the specific situation. The research of this paper has certain practical significance for improving the level of network security.
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