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:
Feb. 25, 2025

Filed:

Mar. 30, 2022
Applicant:

Sophos Limited, Abingdon, GB;

Inventor:

John Mears, Wales, GB;

Assignee:

Sophos Limited, Abingdon, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); H04L 51/21 (2022.01); H04L 51/212 (2022.01); H04L 51/224 (2022.01); H04L 51/42 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04L 51/21 (2022.05); H04L 51/212 (2022.05); H04L 51/224 (2022.05); H04L 51/42 (2022.05);
Abstract

A computer-implemented method includes generating behavior patterns based on historical behavior of a plurality of emails. The method further includes receiving an email message from a sender, wherein the email message is withheld from delivery to a recipient. The method further includes extracting a plurality of features from the email message. The method further includes determining whether content of the email message matches at least one criterion for suspicious content. The method further includes determining a reputation score associated with the sender based on a comparison of the extracted features with the behavior patterns, wherein the extracted features include an identity of the sender. The method further includes responsive to the content of the email message not matching the at least one criterion for suspicious content and the reputation score meeting a reputation threshold, delivering the email message to the recipient.


Find Patent Forward Citations

Loading…