UNAUTHORIZED ACCESS DETECTION SYSTEM, UNAUTHORIZED ACCESS DETECTION APPARATUS, UNAUTHORIZED ACCESS DETECTION METHOD, AND UNAUTHORIZED ACCESS DETECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To reliably detect an unauthorized access by remote control.SOLUTION: An unauthorized access detection system includes: a machine-operation inspection apparatus which presents inspection data for inspecting a non-machine operation and having predetermined characteristics, to a terminal; and a characteristic observation apparatus which detects an unauthorized access from a remote-controlled terminal by detecting characteristics from network statistical information after presenting the inspection data to the terminal.SELECTED DRAWING: Figure 1