AVS, or address verification service avs, is one of the main tools card-not-present (CNP) merchants use to fight fraud and chargebacks. It can be a valuable tool for ecommerce businesses because it verifies that the billing address entered by the customer matches the address on file with their card issuer. However, it is not a foolproof system. Fraudsters have figured out ways to circumvent its limitations. One problem is that AVS only checks for numeric data, which means it ignores letters. Another issue is that if the cardholder has moved recently or their card issuer has an outdated address on record, an AVS mismatch could happen.
As a result, an AVS mismatch can lead to legitimate transactions being rejected. This can be a pain for customers, as they will likely be left with a temporary reserve on their account while they wait for the bank to update its records. To help avoid this, it is important for merchants to have a good understanding of how AVS works so they can be confident in their decisions about whether to accept or decline a transaction. This is especially true if they are using AVS as part of a larger set of fraud prevention tools, such as CVV validation codes, IP address verification, device authentication, and biometric analysis. In these cases, the merchant should consider how far away from the cardholder's billing address they appear to be when making a decision about whether to approve a transaction.
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