(With the widespread use of information science and technology, we have now entered a historical stage of informatization development and competition. With the widespread use and popularization of the Internet, the issue of network communication security cannot be ignored. With the continuous enhancement of network openness, the security threats inside and outside are also increasing. Network attacks, information theft and other network security offices frequently occur, and the characteristics of network malicious behavior are increasingly profitable. Underground industry chain, individual hackers or even hostile countries)