RECORDING DEVICE AND CONTROL METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide a technique capable of improving security on the basis of issuance of specific processing to a recording device.SOLUTION: The recording device comprises: authentication information storage means for storing authentication information to be used for authenticating access to data storage means; reception means for receiving the authentication information transmitted from a host device; authentication means for comparing the authentication information received in the reception means with the authentication information stored in the authentication information storage means and authenticating the access to the data storage means; command tendency storage means for storing command tendency which is information including an order or timing related to a command transmitted from the host device; command tendency determination means for determining whether or not the command tendency of the command transmitted from the host device is similar to the command tendency stored by the command tendency storage means; and use disabling means for turning data stored by the data storage means to a practically unusable state on the basis of determination of the command tendency determination means.