How can the same cardholders keep getting their new card #s compromised?

Fraudology Podcast with Karisse Hendrick

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1y ago 40:16

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Fraudology is presented by Sardine.

This question (or a form of it) has been asked multiple times recently by different people in Karisse's life. From the dental assistant at her dentist's office to a couple of Fraudology listeners asking on behalf of themselves or co-workers, and at least one online merchant that received an escalated call from an upset victim of credit card fraud that accused their company of stealing his recently re-issued card #.

While these instances could all be coincidental, as fraud-fighters, we know there usually isn't such a thing as a coincidence. So, on this week's episode of Fraudology, Karisse lays out 5 different ways that fraudsters have learned to "recycle" or learn the new card # on a credit card account w/ a card that was recently closed, and reissued with a new card # due to fraud.

Tha advantages to knowing these often not discussed methods are to help you troubleshoot & identify the various root causes if this happens to you, a family member, or a customer; and to be aware of the various methods used to identify "fresh" card #s that often lead to recurring card fraud victims. And what can be done to prevent these methods, either/and by the cardholder, the issuing bank, and/or the merchant of record?

The link to the article referenced if you're interested in learning more about the math equations behind issuing new credit card #s (The "Luhn/Mod-10" algorithm; proprietary algorithms utilized by each issuing bank are not available publicly):

https://medium.com/@ma.juber/mathematics-behind-credit-debit-card-numbering-340bf68d27d2

Fraudology is hosted by Karisse Hendrick, a fraud fighter with decades of experience advising hundreds of the biggest ecommerce companies in the world on fraud, chargebacks, and other forms of abuse impacting a company's bottom line.

Connect with her on LinkedIn

She brings her experience, expertise, and extensive network of experts to this podcast semi weekly, on Tuesdays and Thursdays.

Mentioned in this episode:

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