Filtering hidden data embedded in media files
US9319384B2 · kind B2 · utility
129Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for filtering unsafe content at a network security appliance are provided. According to one embodiment, a network security appliance captures network traffic and extracts a media file from the network traffic. The network security appliance then determines the presence of a hidden data item embedded in the media file in a machine-readable form. When such a hidden data item is identified, the network security appliance performs one or more actions on the media file based on a predefined security policy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.