COMMUNICATION SECURITY MANAGEMENT DEVICE, NETWORK SYSTEM, COMMUNICATION SECURITY MANAGEMENT METHOD, AND COMMUNICATION SECURITY MANAGEMENT PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a communication security management device, network system, communication security management method, and communication security management program that can reduce the security risk of communication.;SOLUTION: A communication security management device includes: an extraction unit that collates a plurality of rules for regulating communication on the basis of a plurality of conditions with a history of communication in accordance with the plurality of rules and thereby extracts one or more rules being used and an unused rule from the plurality of rules; a determination unit that determines a common condition between the one or more rules being used and the unused rule among the plurality of conditions; and a notification unit that gives notification of the disposal of the unused rule corresponding to the common condition.;SELECTED DRAWING: Figure 12;COPYRIGHT: (C)2019,JPO&INPIT