Patent ID: 9202173
Filing Date: 2015-12-01
Classification: G06N

Abstract:
1. A method of performing knowledge-based authentication (KBA), the method comprising: receiving an adversary alert which identifies an adversary having knowledge of certain facts utilized by a KBA system to construct KBA questions; in response to the adversary alert, altering operation of the KBA system to account for the adversary having knowledge of the certain facts; and after the operation of the KBA system has been altered to account for the adversary having knowledge of the certain facts, selecting KBA questions from the KBA system to authenticate users, the KBA questions being selected based on adjustments made within the KBA system in response to the adversary alert; wherein the method further comprises generating a link table that includes a set of entries, each entry of the set of entries including (i) a fact identifier identifying a fact of a set of facts and (ii) a user identifier identifying a user to whom the fact has a reference; and wherein altering the operation of the KBA system includes: