The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Nov. 29, 2023
Hitachi, Ltd., Tokyo, JP;
Mayuko Tanaka, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
Provided is an abnormal communication discrimination apparatus which includes an eventual feature table for the evaluation of each abnormal communication detection event, and a statistical feature table for the evaluation of each condition in which a statistical amount of abnormal communication holds. The abnormal communication discrimination apparatus calculates an eventual evaluation value from each number of records to which the abnormal communication detection events of the eventual feature table are applicable, calculates a statistical evaluation value from each number of records each of which satisfies a condition that a statistical amount of abnormal communication holds, calculates a discrimination result evaluation value by applying a weighted linear sum of the eventual evaluation value and the statistical evaluation value, and performs, on the basis of the discrimination result evaluation value, discrimination of whether abnormal communication is caused by a cyber-attack or by a failure of an apparatus of the monitoring target system.