| 摘要 |
A portable terminal device that is enabled to use data with a certain degree of protection against information leakage. The portable terminal device uses data stored in a server by communicating with the server via a network, and includes: a connection monitor that monitors a connection state of the portable terminal device with the server; and a data manager that deletes same data as data stored in the server from the portable terminal device when the connection monitor detects that the portable terminal device goes into the online state. |
