| 摘要 |
Personal information of members (10) of a provider (20) are protected when the members (10) have an access to the internet. A provider (20) issues an ID number to a member (10) at the time of making a contract, and issues an IDP which corresponds to the ID number to have an access to a virtual shop (30) on the internet and manages the IDP so as to manage personal information of the member (10), and the member (10) has an access to the virtual shop (30) on the internet using the IDP which is issued when the member (10) has an access to the provider (20) using the ID number. That is, since members (10) of a provider (20) use IDP owned by the provider (20) when the members (10) have an access to the internet, personal information of members (10) of the provider (20) can be protected. Furthermore, since the provider (20) ascertains the identity of the members (10) and guarantees solvency of charge of the members (10) when the members (10) purchase goods or information at the virtual shops (30) on the WEB site, the safety and certainty of commerce can be secured for the members (10) as well as for the virtual shops (30) on the WEB site. <IMAGE>
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