Voice and video watermark for exfiltration prevention
US9848003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2203/6027
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A legitimate voice or video communication application modifies data in a communication session to produce a watermark. The watermark is a piece of information that is part of a communication session that is not readily observable, but can be verified later on. The purpose of a watermark is to verify that the communication session is a legitimate communication session and does not pose a security breach. The video or audio communication session is monitored for a watermark. In response to determining that the communication session contains the watermark, the communication session is allowed continue. In response to determining that the communication session does not contain the watermark, the communication session is identified as a potential security breach. If the communication session is identified as a potential security breach, the communication session can be dropped and a user can be notified of the potential security breach.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.