Sensitive data detection and protection method and device, equipment and medium

The invention provides a sensitive data detection and protection method and device, equipment and a medium, and the method comprises the steps: carrying out the flow mirroring at an important node of a network, and carrying out the data collection and storage, so as to serve as a data source of a whole system; performing AI abnormal traffic detection on the data source based on the access track and frequency of the user; according to a customized sensitive fine granularity rule, carrying out sensitive information detection on response messages of all URLs or interfaces; according to the abnormal flow detection result and the sensitive information detection result, performing linkage judgment in combination with a white list mechanism, and performing multi-level alarm or log recording according to the linkage judgment result. According to the method, sensitive data detection and abnormal access detection are combined, static and dynamic combination is adopted, safety of sensitive data and access of normal user