When Riskified reviews orders for fraud, our machine learning uses a wide range of data and enrichment on that data to make accurate decisions. Payment information can be particularly helpful in identifying fraud orders. Below are some payment data points that are considered in our fraud review: 

Card Verification Value (CVV)
Credit Card BIN
Address Verification Service (AVS)
What does it mean when the AVS or CVV is unavailable? 

Card Verification Value (CVV)

Card Verification Value (CVV) is typically a three- or four-digit code that appears on the back of most credit cards and is meant to be used as proof that the person placing the order is the actual credit card holder. However, since fraudsters are often able to obtain that code, a CVV match does not necessarily guarantee a non-fraudulent order.

Credit Card BIN

BIN (Bank Identification Number) refers to the first six or eight digits of the credit card number that indicates which bank issued the card. The BIN tells us where the card was issued in and the card type (i.e., credit, debit).

Address Verification Service (AVS)

There are 3 types of AVS:

• Full AVS match means that both the street number and the zip code in the billing address match the details on file with the credit card company.
• Partial match means that only one of the two details match those on file with the credit card company.
• No match means that none of the billing details match those on file with the credit card company.

What does it mean when the AVS or CVV is unavailable?

Not all credit cards support AVS and CVV. Most credit cards issued outside the US or Canada do not support AVS, which means that the billing address supplied by the buyer cannot be used to verify the card.