Title:
COMMUNICATION SYSTEM, GATEWAY DEVICE, TERMINAL DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/157191
Kind Code:
A1
Abstract:
[Problem] To reduce a workload and improve the security of a communication system. [Solution] A communication system according to the present invention comprises a communication control means that: permits communication from a web browser when the domain name in the URL requested by the web browser is registered in a legitimate site list; blocks the communication from the web browser when the domain name is registered in a fraudulent site list; and when the domain name is registered in neither the legitimate site list nor the fraudulent site list, acquires the top page data of a web server corresponding to the FQDN in the requested URL and, if an organization name and a keyword extracted from the acquired top page data match an organization name and a keyword registered in the legitimate site list, registers the domain name of the requested URL in the fraudulent site list and blocks the communication from the web browser.
Inventors:
OTA TOSHIO (JP)
KASAI MIO (JP)
MIYAMOTO YASUHIRO (JP)
MIYAMOTO JUNKO (JP)
KASAI MIO (JP)
MIYAMOTO YASUHIRO (JP)
MIYAMOTO JUNKO (JP)
Application Number:
PCT/JP2022/006437
Publication Date:
August 24, 2023
Filing Date:
February 17, 2022
Export Citation:
Assignee:
FIVEDRIVE INC (JP)
International Classes:
G06F21/55; H04L12/22; H04L12/66
Domestic Patent References:
| WO2020044469A1 | 2020-03-05 |
Foreign References:
| JP2009230662A | 2009-10-08 | |||
| JP2007334759A | 2007-12-27 |
Attorney, Agent or Firm:
SEKI Masamitsu (JP)
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