System and method of identifying fraudulent activity from a user device using a chain of device fingerprints
US10931697B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Nov 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/146
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides systems and methods of selecting candidates for comparison of fingerprints of devices. An exemplary method comprises calculating a digital fingerprint of a device, determining a group of digital fingerprints where the digital fingerprint occurs, calculating vectors of changed features of each digital fingerprint, calculating a probability that the digital fingerprint and each digital fingerprint within the group belong to the same chain, identifying a set of candidates from the group whose probability of belonging to the same chain of fingerprints crosses a value, comparing the calculated digital fingerprint of the device with the fingerprints in the set of candidates, determine that the device correspond to a device in the set of candidates when the comparison results in a match higher than a specified threshold and permitting the user actions, otherwise tracking the user actions with the online service as fraudulent activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.