Patent ID: 9298898
Filing Date: 2016-03-29
CPC Classification: G06F,H04L

Claim Text:
1. A method comprising: receiving, at a computer executing a security application, a request from a requestor, the request for a challenge question and a response comprising an answer to the challenge question, wherein the challenge question and the response are used by the requestor to authenticate a user device; accessing, by the computer, event data corresponding to a user of the user device, wherein the event data relates to a transaction that does not occur at the user device; determining, by the computer, a difficulty level for the challenge question, the difficulty level comprising a degree of accuracy associated with an amount of the transaction; generating, by the computer, the challenge question based upon the event data and the difficulty level; generating, by the computer, the response based upon the event data, the response comprising a valid response to the challenge question; and providing, by the computer, the challenge question and the response to the requestor.