| 摘要 |
A portable electronic device (2) is provided for conducting an electronic transaction with a point-of-sale (POS) terminal (80), and includes a device processor (20), and a memory card module (23). The memory card module (23) includes a transceiver unit (231) to receive transaction data from the POS terminal (80), a storage unit (232) including a working zone (2321) and a hidden zone (2322) that stores the transaction data, and a processing unit (2303). The transaction data (402) stored in the hidden zone (2322) is accessible only to the processing unit (2303). The processing unit (2303) is responsive to control by the device processor (20) that executes a read-only control application (401) stored in the working zone (2321) for accessing the transaction data (402) stored in the hidden zone (2322). |
