ILLEGAL ACCESS PREVENTION METHOD AND ILLEGAL ACCESS PREVENTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent illegal access by imparting a terminal number to a terminal from a host computer for the first time at the time of a communication test performed at the time of installing a communication program to the terminal. SOLUTION: A terminal number management file 111 is stored in the storage device 11 of the host computer 1 and a box for storing the terminal numbers for the total of 999 terminals for respective customers is prepared in the terminal number management file 111. a terminal number file 211 is stored in the storage device 21 of the terminal 2 and the transmitted terminal number is stored in the terminal number file 211. The terminal number is imparted from the host computer 1 to the terminal 2 for the first time at the time of the communication test performed at the time of installing the communication program for performing communication with the host computer 1 to the terminal 2. Thus, differently from supplying the terminal number to be recognition for performing access to a terminal side beforehand, the chances of letting a person other than a terminal user confirm the terminal number are extremely less.