Discover how credit card validation codes work and protect against fraud. Learn about their placement, security role, and examples to secure online transactions.

The numbers on a credit card help identify the credit card network, the company that issued the card and the cardholder. Credit card numbers are either 15 or 16 digits, with each digit having its own ...

Credit card security codes are three-digit codes on the back of your card (four-digits on the front if you have an American Express card) used to verify that have the physical card. You typically ...

Whether shopping online or over the phone, you must provide your credit card information to process the transaction. Apart from entering a card number and an expiration date, you probably will have to ...

To avoid credit card theft, it’s not enough to simply keep your credit card in a secure place — you have to monitor your credit card statements and credit reports routinely for signs of fraud. As data ...