To provide an unauthorized access prevention system capable of preventing an unauthorized access by a reliable identifying of an intruder in the case of an intrusion to a home page through internet without authorization.
This system 10 comprises a general management company 16 consisting of a telephone line management company 12 and a provider 14. In the case of the intrusion into a home page 22 without authorization by a hacker 26 among internet users 18, the intrusion date and time are recorded in a system of home page manager 24. The telephone number, the ID code, the password code, the access code, the connecting time and so on which are the information about the hacker 26 and about the connection destination are recorded at the company 16, then the hacker's whereabouts is specified based on the intrusion date and time and the recorded information.
TANAKA TAKAO
ISAKA SATOSHI
