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.

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.

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 ...

The research team reveals that hackers can guess the card information on Visa debit/credit cards by ... one go to aid them in guessing what the security code is. A security code or CVV is only ...

NEW YORK (AP) — Wal-Mart Stores Inc. has sued Visa Inc., charging that the payment network is not allowing the retail giant to let customers verify chip-enabled debit ... cards spit out a unique ...