Data leak protection
US10237282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 1, 2018 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for Data Leak Prevention (DLP) in an enterprise network are provided. According to one embodiment, a network security device maintains a filter database containing multiple filtering rules. Each filtering rule specifies a watermark value, a set of network services for which the filtering rule is active and an action to be taken. Network traffic directed to a destination residing outside of an enterprise network, associated with a particular network service and containing a file is received. A watermark value embedded within the file is identified. When there exists a filtering rule specifying a matching watermark value and for which the filtering rule is active for the particular network service, the action specified by the filtering rule is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.