Payment Fraud

Payment fraud covers a broad family of techniques, but most online variants share a common shape: a payment credential that does not legitimately belong to the person using it is submitted at checkout. The credential may be a stolen card number bought from a marketplace, a compromised wallet or bank login, or a card generated and tested until a valid one is found. Because the cardholder is not physically present, the fraudster only needs the data, not the physical instrument.

In a card-not-present attack, the fraudster enters the stolen details on a checkout page, often after using automation to test many cards for validity. To avoid triggering issuer or merchant defenses, they mask their origin with proxies and match the billing region, and they may fabricate supporting data such as an email address and phone number that look consistent. Successful transactions are then converted to value: high-resale goods shipped to a controlled address, digital gift cards, or cryptocurrency.

Other payment-fraud paths exploit the account and the flow rather than the raw card. An attacker who has taken over an account can spend the stored balance or use a saved card. Some fraud manipulates the transaction itself, for example intercepting or altering payment instructions, exploiting refund and cancellation logic, or abusing weakly verified alternative payment methods. In each case the goal is to move money or goods while making the transaction appear authorized.