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.

Date of Patent:
Nov. 15, 2022

Filed:

May. 22, 2020
Applicant:

F-secure Corporation, Helsinki, FI;

Inventors:

Yury Yakovlev, Helsinki, FI;

Gabor Gunyho, Helsinki, FI;

Andrey Rusetskiy, Helsinki, FI;

Assignee:

F-Secure Corporation, Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/40 (2022.01); H04L 12/66 (2006.01); H04L 61/4511 (2022.01);
U.S. Cl.
CPC ...
H04L 63/205 (2013.01); H04L 12/66 (2013.01); H04L 61/4511 (2022.05); H04L 63/0209 (2013.01); H04L 63/145 (2013.01); H04L 63/1433 (2013.01);
Abstract

There is provided a network security method in a computer network. The method comprises detecting, by a gateway computer, a target device being connected to the computer network, detecting the target device transmitting a DNS query for resolving a hostname into an IP address, transmitting a query to a content rating system, wherein the query comprises the resolved hostname related to the DNS query of the target device, receiving, from the content rating system, a list of categorization categories assigned to the resolved hostname, determining a type of the target device on the basis of the received list of categorization categories assigned to the hostname, and generating a security related decision on the basis of the determined type of the target device.


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