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:
Jan. 27, 2026
Filed:
Oct. 03, 2023
Bitdefender Ipr Management Ltd., Nicosia, CY;
Bela Genge, Tirgu Mures, RO;
Dan Macovei, Buchare, RO;
Bitdefender IPR Management Ltd., Nicosia, CY;
Abstract
Some embodiments construct a device fingerprint of a target device (e.g., personal computer, smartphone) by intercepting an access request issued by the target device. A part of the device fingerprint may be determined according to the access request, e.g., according to various features of a TLS handshake, TCP header, and/or HTTP header of the respective access request. Another part of the device fingerprint is determined by transmitting a fingerprinting probe to the target device in response to the access request, and using executable code included in the fingerprinting probe to extract a set of features characterizing a browser executing on the target device. Some embodiments then compare the device fingerprint with reference fingerprints determined for other devices on the same network, to determine whether the target device is a familiar device or not. Exemplary applications include access control and personalized content distribution, among others.