When you make credit card purchases online or over the phone, you'll often need the card's security code to complete the transaction. The security code helps to protect you from credit card fraud and ...

Fraud prevention is a major concern for many people. To prevent fraudulent charges, most merchants require customers to provide their debit or credit card number, its expiration date and a numeric ...

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 ...