Attack detection device, attack detection method and attack detection program

摘要

The attack detection device adjusts the data associated with the equipment ID and the adjustment time with the abnormality detection unit that detects that an abnormality has occurred in the equipment corresponding to the equipment ID by acquiring the abnormality detection result including the equipment ID. Based on the storage unit that stores as history data and the detection result by the abnormality detection unit, the adjustment frequency of the equipment corresponding to the equipment ID is obtained from the adjustment history data stored in the storage unit, and the adjustment frequency is set for the equipment. It is provided with an attack determination unit that determines that the equipment has been attacked when the permissible number of times has been exceeded.