Abnormality detection method, device, equipment and medium

Abstract

The embodiment of the invention discloses an anomaly detection method and device, equipment and a medium. The method comprises the steps that access credentials and access time of all nodes of a target object in a current access link are acquired; determining a first access score of each node of the current access link according to the access frequency of the node corresponding to the access time of each access credential; determining a second access score of the current access link according to the jump probability between the nodes in the current access link; and determining whether the current access link is abnormal or not according to the first access score of each node and the second access score of the current access link. According to the technical scheme provided by the invention, the abnormal access link can be accurately determined, and the abnormal link detection efficiency is improved.

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