| 摘要 |
A method for blocking an AD(ADvertisement) through an automatic bulletin board registration program in a bulletin board using a variable changing method is provided to block all bulletins uploaded through the automatic registration program by hiding a variable value from the automatic registration program, as the variable of input items inputted from a user is changed for each input. After a security engine independent of a bulletin script program generates the variable by responding to a writing request of the user, the variables of each item in a writing form are changed. The security engine extracts/transfers the value inputted to the changed variable to a database. For the input using the automatic registration program, the changed variable is not detected by the automatic registration program and the security engine refuses the input from the automatic registration program.
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