If you're attempting to add your debit card as a ... insists you've entered your card's security code incorrectly, your problem may have nothing to do with the security code.

The latest involves prepaid debit cards ... requires the card number, the last six digits of an individual’s social security number, and the three-digit security code on the back of the card.

If you select the debit option when you're at the payment terminal, you're asked to enter your personal identification number, or PIN. If it's the correct code ... as Visa, with credit cards.

Walmart is suing Visa for allowing customers to verify chip-enabled debit card ... The chip cards are considered much more difficult to hack because they create one-time codes to process every ...

Every day, millions of Americans stand at store checkout counters and make a seemingly random decision: after swiping their debit card, they choose whether to punch in a code, or to sign their name.