Method and system of transaction security
US7168091B2 · kind B2 · utility
4Cited by
16References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2004 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Sep 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/41
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for secure authentication of a user in a session conducted over an interactive communication channel, such as a two-way telephony communication channel, with an authenticating entity, such as a financial institution, utilizes a session identifier, such as pseudorandom noise to detect and identify attempts to play back authentication information, such as user-spoken phrases, intercepted and recorded by an unauthorized party during a previous session between the user and the authenticating party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.