Dynamically detecting abnormalities in otherwise legitimate emails containing uniform resource locators (URLs)
US10616272B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jun 4, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/128
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Dynamically detecting abnormalities in otherwise legitimate emails containing Uniform Resource Locators (URLs) is provided. An example method includes determining one or more rules defining normal patterns in a number of sending Top-Level Domains of previously received emails received via a computer network to a user or group of users; generating a trusted trends criteria for a received email, associated with the user or the group of users, by evaluating the received email against the one or more rules; determining whether the trusted trends criteria exceeds a predetermined threshold; in response to exceeding the predetermined threshold, generating a second URL and applying it to the received email by replacing a first URL of the received email with the second URL; and redetermining the one or more rules defining normal patterns in the number of sending Top-Level Domains based on the previously received emails and the received email.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.