Patent ID: 8904548

Claim:
An information processing apparatus comprising: a non-transitory storage configured to store a first stored data, a second stored data, and a certain authentication information; a computer processor, the processor configured to: detect whether authentication information is inputted within a certain period of time; determine whether the authentication information coincides with the certain authentication information; process in a first mode having access to the first stored data when the authentication information is not detected within the certain period of time or when the authentication information detected within the certain period of time does not coincide with the certain authentication information, and to process in a second mode having access to the second stored data when the authentication information is detected within the certain period of time and coincides with the certain authentication information; store in the storage information of a history of operation performed in the first mode; and store in the storage a first information and a second information, the second information not being used in the second mode; and a counter to count a number of events in which the authentication information is not detected within the certain period of time or the authentication information detected within the certain period of time does not correspond to the certain authentication information, the processor being further configured to delete or overwrite the second information when the counted frequency of events is greater than or equal to a given number of times.