what is a security code on a debit card

A security code on a debit card is a three- or four-digit number that provides an additional layer of security when making purchases online or over the phone. It is also known as a card security code (CSC), verification code (CVC), or card code verification (CCV). The security code is usually located on the back of the card, in the signature box below the magnetic stripe. Some card issuers, like American Express, feature this code on the front of the card. The security code is separate from the card number and confirms that the person making the purchase is the physical cardholder. It is important to keep the security code confidential and not share it with anyone to prevent fraud. If for any reason the security code is unreadable or cannot be found, the bank or financial institution that issued the card should be contacted for assistance.