Patent ID: 8533485
Filing Date: 2013-09-10
Classification: G06F,G06Q,H04L

Abstract:
1. A method for authenticating a digital communication, the method comprising: responsive to detecting a second end user system receiving a first instant message from a first end user system, transmitting, by an authenticating apparatus, a challenge to the first end user system, wherein the challenge requests a user of the first end user system to speak a phrase including a predetermined portion of a second instant message previously exchanged between the first end user system and the second end user system, the predetermined portion of the second instant message including N integer words of the second instant message; responsive to receiving a challenge response including response data indicative of the user of the first end user system speaking the phrase, sending the response data to a third party service provider for authentication; after receiving the challenge response, saving the predetermined portion of the second instant message as an entry in a used phrase database; and receiving an authentication from the third party service provider that the response data matches a template.