| 摘要 |
The present invention relates to a method of preventing others from using a user's personal information by stealth on space by using others' ID by stealth. Users keep online by logging in to an authentication server through a predetermined appropriation-sensing program. A plurality of servers that provide services on the Internet requests user authentication from the authentication server when a user needs to be identified or a user logs in. The authentication server for which user authentication has been requested determines whether the user is logged in the authentication server. If the user is in a logout state, the authentication server performs a user authentication procedure. If the user is in a login state, the authentication server compares an access IP of a user for which authentication will be performed and an access IP of a user who has logged in to the authentication server. If the two access IPs are identical to each other, the authentication server performs the authentication procedure. If the two access Ips are different from each other, the authentication server does not perform the user authentication procedure. Thus, users who log in to the authentication server through the appropriation-sensing program can prevent their personal information from being used by stealth.the Internet and preventing others infringing others' cyber |
