Message stream analysis for spam detection and filtering
US7716297B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/212
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are described for performing a correlative statistical analysis on a stream of email messages to identify new spam campaigns. For example, a method according to one embodiment of the invention comprises: extracting a series of patterns from a stream of incoming email messages; performing a correlation between the patterns to identify recurring patterns within the stream of email messages over a specified time period; dynamically updating a spam filtering engine to include a particular recurring pattern if the number of times the particular recurring pattern is detected within the specified time period is above a first specified threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.