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:
Aug. 22, 2023

Filed:

Dec. 18, 2018
Applicant:

Sophos Limited, Abingdon, GB;

Inventors:

Andrew J. Thomas, Oxfordshire, GB;

Kenneth D. Ray, Seattle, WA (US);

Karl Ackerman, Topsfield, MA (US);

Assignee:

Sophos Limited, Abingdon, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 11/00 (2006.01); G06F 21/56 (2013.01); G06F 21/55 (2013.01); G06F 21/44 (2013.01); G06F 21/57 (2013.01); H04L 51/212 (2022.01); G06F 21/64 (2013.01); H04L 41/142 (2022.01); H04L 43/10 (2022.01); H04L 67/104 (2022.01); G06F 21/45 (2013.01); G06F 21/40 (2013.01); G06F 21/43 (2013.01); H04L 9/32 (2006.01); H04L 41/0631 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1483 (2013.01); G06F 11/00 (2013.01); G06F 21/40 (2013.01); G06F 21/43 (2013.01); G06F 21/44 (2013.01); G06F 21/45 (2013.01); G06F 21/554 (2013.01); G06F 21/566 (2013.01); G06F 21/57 (2013.01); G06F 21/64 (2013.01); H04L 9/3213 (2013.01); H04L 41/0631 (2013.01); H04L 41/142 (2013.01); H04L 43/10 (2013.01); H04L 51/212 (2022.05); H04L 63/02 (2013.01); H04L 63/0209 (2013.01); H04L 63/0227 (2013.01); H04L 63/0236 (2013.01); H04L 63/0254 (2013.01); H04L 63/0428 (2013.01); H04L 63/08 (2013.01); H04L 63/0807 (2013.01); H04L 63/10 (2013.01); H04L 63/14 (2013.01); H04L 63/1408 (2013.01); H04L 63/1416 (2013.01); H04L 63/1425 (2013.01); H04L 63/1441 (2013.01); H04L 63/1466 (2013.01); H04L 63/1491 (2013.01); H04L 63/164 (2013.01); H04L 63/20 (2013.01); H04L 67/104 (2013.01);
Abstract

An endpoint in a network periodically generates a heartbeat encoding health state information and transmits this heartbeat to other network entities. Recipients of the heartbeat may use the health state information to independently make decisions about communications with the source endpoint, for example, by isolating the endpoint to prevent further communications with other devices sharing the network with the endpoint. Isolation may be coordinated by a firewall or gateway for the network, or independently by other endpoints that receive a notification of the compromised health state.


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