A terminal apparatus which communicates with a portable card that contains an integrated device set to either a first mode or a second mode, wherein in the first mode, a predetermined process is performed and in the second mode, a process that requires higher security than the first mode is performed, the terminal apparatus comprising:
- a box which contains an antenna and is electromagnetically shielded so that a radio wave having over a predetermined level of power does not leak from the terminal apparatus;
- and
- a communicating unit operable to, after the portable card is inserted into the box, set the integrated device to the second mode and then communicate with the integrated device by allowing the antenna to emit a radio wave.