Today's debit and credit cards include a verification or security code. This is a four-digit code printed on the front of American Express cards and a three-digit version on the back of MasterCard ...

With debit transactions forecast to overtake cash purchases by 2012, the model has investors swooning: Visa’s stock traded at $88.14 on Monday, near a 52-week high, while shares of MasterCard ...

Walmart is suing Visa for allowing customers to verify chip-enabled debit card transactions with a signature instead of a PIN. The lawsuit filed Tuesday in New York Supreme Court says that Visa ...

A new study reveals that it is possible to crack the details of a Visa credit or debit card in just 6 seconds. The study has been conducted by researchers at Newcastle University, UK, and shares that ...

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 card transactions with what ...

Banks are considering adopting debit and credit cards where the security code changes every hour, to keep ahead of online fraudsters. UK financial institutions are looking at the technology which ...