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The TKO of KBA, Round 2 – the gloves come off

by Guest Contributor 2 min read November 23, 2009

In my last post I discussed the problem with confusing what I would call “real” Knowledge Based Authentication (KBA) with secret questions.   However, I don’t think that’s where the market focus should be.  Instead of looking at Knowledge Based Authentication (KBA) today, we should be looking toward the future, and the future starts with risk-based authentication.

If you’re like most people, right about now you are wondering exactly what I mean by risk-based authentication.  How does it differ from Knowledge Based Authentication, and how we got from point A to point B? It is actually pretty simple.  Knowledge Based Authentication is one factor of a risk-based authentication fraud prevention strategy.  A risk- based authentication approach doesn’t rely on question/answers alone, but instead utilizes fraud models that include Knowledge Based Authentication performance as part of the fraud analytics to improve fraud detection performance.  With a risk-based authentication approach, decisioning strategies are more robust and should include many factors, including the results from scoring models.

That isn’t to say that Knowledge Based Authentication isn’t an important part of a risk-based approach.  It is.  Knowledge Based Authentication is a necessity because it has gained consumer acceptance. Without some form of Knowledge Based Authentication, consumers question an organization’s commitment to security and data protection. Most importantly, consumers now view Knowledge Based Authentication as a tool for their protection; it has become a bellwether to consumers.

As the bellwether, Knowledge Based Authentication has been the perfect vehicle to introduce new and more complex authentication methods to consumers, without them even knowing it.  KBA has allowed us to familiarize consumers with out-of-band authentication and IVR, and I have little doubt that it will be one of the tools to play a part in the introduction of voice biometrics to help prevent consumer fraud.

Is it always appropriate to present questions to every consumer?  No, but that’s where a true risk-based approach comes into play.  Is Knowledge Based Authentication always a valuable component of a risk based authentication tool to minimize fraud losses as part of an overall approach to fraud best practices?  Absolutely; always.

DING!

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Ongoing strategy optimization: Perhaps the most overlooked gap: many lenders lack the ability to continuously test, learn, and refine decision strategies as conditions change. What these gaps are really costing you Individually, each of these breakdowns may seem manageable. Together, they can create systemic drag on performance. That shows up in four critical ways: Missed growth opportunities: Good borrowers are declined, abandoned, or never targeted in the first place. Credit offers fail to align with actual borrower potential. Higher operational costs: Manual reviews and disconnected workflows consume time and resources that could be spent on higher-value work. Increased fraud exposure and friction: Fraud is proliferating and becoming more expensive to manage. The Federal Trade Commission reported $12.5B were lost to fraud in the U.S. in 2024, a 25% increase over the prior year. 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