| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase data security by preventing data stored and managed in an external device from being carelessly leaked through a network. <P>SOLUTION: In a portable telephone set 1, whether or not data existing at the portable telephone set 1 are different from data stored and managed by a company server 3 is determined. The data existing at the portable telephone set 1 are controlled (for example, storing or accessing data is restricted) based on the determination result. <P>COPYRIGHT: (C)2010,JPO&INPIT |
