If you're attempting to add your debit card as a payment method in the Apple Inc. iTunes Store, but you repeatedly get an error message that insists you've entered ...

You may also have to share your card's security code, which you can find on the front or back of your card, depending on the credit card issuer. Your security code number adds extra protection ...

To prevent fraudulent charges, most merchants require customers to provide their debit or credit card number, its expiration date and a numeric code — known as a card security code — located ...

Banks and merchants stepped up security for in-person transactions by introducing chip-based debit and credit cards. This technology enables the internal code to change each time the card is read ...

you may be asked for the card's validation code located on the back of the card as a security measure. Most debit cards are linked to a processing network, such as Visa or Mastercard, allowing ...