Preventing automated programs and unauthorized users in a network
US8505071B2 · kind B2 · utility
14Cited by
15References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Apr 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/36
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for preventing an unauthorized user in a networked computing environment includes a client computer provided with a visual test upon a request transmitted through a network by the client computer for a service, wherein the visual test is displayed on a video display, wherein the visual test requires the performance of a predetermined action on a group of images displayed on the video display in order to gain access to the service, wherein the group of images comprises at least two images that are associated with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.