Abstract: A system includes a management apparatus including a registration unit configured to register information which includes identification information of a device to be targeted for monitoring and is used for managing the device, wherein the management apparatus manages a communication history of one or more communications that were performed from each device to the management apparatus, and, in a case where there are one or more devices information about which is not registered by the registration unit and the managed communication history about which indicates that one or more communications were performed, extracts a device which satisfies a predetermined condition from among the one or more devices and performs processing for inhibiting a communication that is performed from the extracted device.