According to one embodiment, an IC card, which interprets and executes a command instruction from an external device, and returns the execution result as a response, includes a command generation unit configured to generate a request command which requests the external device to execute a specific operation in response to a specific command instruction from the external device, a storage unit configured to store the generated request command in a memory, a notification unit configured to notify the external device of generation of the request command when a response to the specific command instruction is sent, and notify the external device of the request command when the external device instructs to fetch the request command, and a discard unit configured to discard the request command in the storage unit when the external device instructs to discard the request command.