PROBLEM TO BE SOLVED: To provide a security system for quickly and surely reporting security error to a destination.;SOLUTION: This security system to report occurrence of a security error to a communication apparatus connected through a network 108 includes: a security device 100 to determine the communication apparatus as a destination based on the use history of the communication apparatus registered in advance in response to the occurrence of security error. For instance, the communication apparatus having the latest use history can be determined as the destination.;COPYRIGHT: (C)2009,JPO&INPIT
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