| 摘要 |
PROBLEM TO BE SOLVED: To solve the social problem that private information is stolen while a person himself possessing the information does not know about it and is used without permission. SOLUTION: When a seller of private information registers private information in an information management source, he transmits private information to be registered to an information management company terminal unit 20 through a network 100 from an information seller terminal unit 10, and the information management source stores transmitted private information in information database 26. When a buyer of private information purchases private information from the information management source, private information purchase demand is transmitted to an information management source terminal unit 20 through the network 100 from an information buyer side terminal unit 30, and the information management source terminal unit 20 retrieves database and transmits private information corresponding to the demand to the information buyer terminal unit 30 through the network 100. |
