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:
Jul. 28, 2026
Filed:
Nov. 17, 2025
Forescout Technologies, Inc., San Jose, CA (US);
Robert Mcnutt, Cream Ridge, NJ (US);
Daniel Ricardo Dos Santos, Rotterdam, NL;
FORESCOUT TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
A processing device is configured to detect potential encryption downgrades in network communications. The processing device accesses network traffic and detects an attempted first connection between a first entity and a second entity in which the first entity offered at least one post-quantum cryptography (PQC) algorithm to encrypt the attempted first connection. The method detects that the attempted first connection failed, and that a second connection between the first entity and the second entity successfully completed without a PQC algorithm, within a threshold time after the attempted first connection. The processing device identifies this second detection as a downgrade attack and performs a remedial action.