| 摘要 |
<P>PROBLEM TO BE SOLVED: To securely prevent data leakage in an online storage. <P>SOLUTION: A network system includes a terminal device 20 which can be connected to a network, an online storage 10 which can store data on the network and can be used by the terminal device 20, and location information detection means (30 and 40) which detects location information on the terminal device 20. The online storage 10 previously registers the location information on the terminal device 20; when receiving an access request from the terminal device 20, compares the registered location information with the location information detected by the location information detection means (30 and 40); and, if they match each other, permits the access request. <P>COPYRIGHT: (C)2013,JPO&INPIT |
