> How do you validate the card is live? Run a real transaction through it and mark it based on the result. Not necessarily. Some online services, particularly

> How do you validate the card is live? Run a real transaction through it and mark it based on the result. Not necessarily. Some online services, particularly shops that do home delivery, may give their customers the possibility of adding a card to their wallet and perform a verification as part of the process. As a result, it becomes possible to validate a stolen card number without performing an actual transaction.