Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Address Verification System (AVS) is a system used to verify the identity of the person claiming to own the credit card. The system will check the billing address of the credit card provided by the user with the address on file at the credit card company. The other security features for the credit card include the CVV2 number. AVS verifies the numeric portions of a cardholder's billing address. For example, if your address is 101 Main Street, Highland, CA 92346, AVS will check 101 and 92346. Sometimes AVS checks additional digits such as an apartment number, other times it does not. Cardholders may receive false negatives, or partial declines for AVS from e-commerce verification systems, which may require manual overrides, voice authorization, or reprogramming of the AVS entries by the card issuing bank.

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