The box has an invalidating unit for irreversible invalidating of bank notes arranged in a receiving region. A sensor unit includes a sensor for detecting manipulation attempts. A control unit controls the invalidating unit. The control unit triggers the invalidating unit in an activated operating state if the sensor unit detects the attempts. The control unit does not trigger the invalidating unit in a deactivated operating state (S12) of the box even in an event of the attempts. The control unit checks (S16) a planned function of the sensor prior to activation of the box. The invalidating unit is an ink kit. The sensor is an acceleration sensor. The receiving region is a receiving compartment.
