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By: Kennis Wong As a fraud management professional, naturally I am surrounded by fraud prevention topics and other professionals in the field all the time. Financial, ecommerce, retail, telecommunication, government and other organizations are used to talking about performance, scoring models, ROI, false-positives, operational efficiency, customer satisfaction trade-off, loss provisioning, decisioning strategy or any other sophisticated measures when it comes to fraud management. But when I bring up the topic of fraud outside of this circle, I am always surprised to see how little educated the general public is about an issue that is so critical to their financial health. I met a woman in an event several weeks ago. After learning about my occupation, she told me her story about someone from XYZ credit card company calling her and asking for her Social Security number, date of birth and other personal identifying information. Only days after she gave out the information that she realized things didn’t seem right. She called the credit card company and got her credit card re-issued. But at the time I talked to her, she still didn’t know enough to realize that the fraudster could now use her identity to start any new financial relationship under her name. As long as consumers are ignorant about protecting their identity information, businesses’ identity theft prevention program will not be complete and identity fraud will occur as a result of this weak link. To address this vulnerability and minimize fraud, consumers need to be educated.

— by, Andrew Gulledge One of the quickest and easiest ways to reduce fraud in your portfolio is to incorporate question weighting into your out of wallet question strategy. To continue the use of knowledge based authentication without question weighting is to assign a point value of 100 points to each question. This is somewhat arbitrary (and a bit sloppy) when we know that certain questions consistently perform better than others. So if a fraudster gets 3 easier questions right, and 1 harder question wrong they will have an easier time passing your authentication process without question weighting. If, on the other hand, you adopt question weighting as part of your overall risk based authentication approach, that same fraudster would score much worse on the same KBA session. The 1 question that they got wrong would have cost them a lot of points, and the 3 easier questions they got right wouldn’t have given them as many points. Question weighting based on known fraud trends is more punitive for the fraudsters. Let’s say the easier questions were worth 50 points each, and the harder question was worth 150 points. Without question weighting, the fraudster would have scored 75% (300 out of 400 points). With question weighting, the fraudster would have scored 50% (150 out of 300 points correct). Your decisioning strategy might well have failed him with a score of 50, but passed him with a score of 75. Question weighting will often kick the fraudsters into the fail regions of your decisioning strategy, which is exactly what risk based authentication is all about. Consult with your fraud account management representative to see if you are making the most out of your KBA experience with the intelligent use of question weighting. It is a no-brainer way to improve your overall fraud prevention, even if you keep your overall pass rate the same. Question weighting is an easy way to squeeze more value of your knowledge based authentication tool.

— by, Andrew GulledgeThe intelligent use of question weighting in KBA should be a no-brainer for anyone using out of wallet questions. Here’s the deal: some authentication questions consistently give fraudsters a harder time than other questions. Why not capitalize on that knowledge?Question weighting is where each question type has a certain number of points associated with it. So a question that fraudsters have an easier time with might be worth only 50 points, while a question that fraudsters often struggle with might be worth 150 points. So the KBA score ends up being the total points correct divided by the total possible points. The point is to make the entire KBA session more punitive for the bad guys.Fraud analytics are absolutely essential to the use of intelligent question weighting. While fraud prevention vendors should have recommended question weights as part of their fraud best practices, if you can provide us with as many examples as possible of known fraud that went through the out of wallet questions, we can refine the best practice question weighting model to work better for your specific population.Even if we keep your pass rate the same, we can lower your fraud rate. On the other hand, we can up your pass rate while keeping the fraud rate consistent. So whether your aim it to reduce your false positive rate (i.e., pass more of the good consumers) or to reduce your fraud rate (i.e., fail more of the fraudsters), or some combination of the two, question weighting will help you get there.
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