Is it safe to give last 4 digits of credit card?
The “last 4” of a credit card number is generally considered safe. It’s typically used either to validate that you are the holder of that card, or that they’re about to apply a credit to the correct card.
What do the last 4 numbers on a credit card mean?
You can look up the last 4 digits of a credit card to identify how many times this card has been used in your software. This is helpful in identifying duplicate charges. A client’s card may have been stored on another client’s profile. And this is helpful in identifying clients who have filed a chargeback.