An information processing device to solve the above-mentioned disadvantage according to the present invention comprises: information receipt part to receive a digital information from an external information record medium; first judgment part to judge whether the external information record medium is a medium which is readable and writable; second judgment part which judges whether a predetermined security processing is performed to the digital information to be received; and control part to control the information receipt part to refuse a receipt of the digital information which is judged that the medium is readable and writable by the first judgment part and a security processing is not performed by the second judgment part.