Abstract: An IC card and a method of controlling the IC card which can improve convenience are provided. An IC card of embodiments includes a communicator, a storage and an authentication processor. The communicator performs communication with a terminal device. The storage stores authentication information for authenticating a user. The authentication processor performs personal authentication on the basis of input information received from the terminal device through the communicator and authentication information stored in the storage. In addition, the authentication processor extends an authentication processing time until completion of authentication becomes possible again on the basis of the number of times of the personal authentication having failed.

Abstract: According to an embodiment, the IC card includes a communication unit, a verification rate acquisition unit, a setting unit, a reception processing unit, and a determination unit. The communication unit transmits and receives data to and from an external device. The verification rate acquisition unit acquires a verification rate of biometric information. The setting unit selects a security level corresponding to the verification rate from a plurality of security levels each indicating an executable command, and sets the selected security level as the current security level. The reception processing unit receives a command through the communication unit. The determination unit determines whether or not the received command is executable on the basis of the current security level.

Abstract: According to an embodiment, the IC card includes a communication unit, a verification rate acquisition unit, a setting unit, a reception processing unit, and a determination unit. The communication unit transmits and receives data to and from an external device. The verification rate acquisition unit acquires a verification rate of biometric information. The setting unit selects a security level corresponding to the verification rate from a plurality of security levels each indicating an executable command, and sets the selected security level as the current security level. The reception processing unit receives a command through the communication unit. The determination unit determines whether or not the received command is executable on the basis of the current security level.