Payment risk glossary
Short, sourced definitions of payment fraud, chargeback and risk scoring terms, from velocity checks to scheme monitoring programmes.
AVS meaning: what Address Verification System checks
AVS (Address Verification System) checks billing address data against the card issuer. Learn what AVS codes mean and how to use them in fraud rules.
Chargeback: what it is and what it means for merchants
Chargeback definition: a forced reversal of a card payment started by the cardholder's bank. What it means for merchants and how it differs from a refund.