What’s a debit card security code and why is it important? (2024)

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More people reach for their debit cards when making a cashless payment than any other type of card, according to the Federal Reserve.

It’s not hard to understand why people like debit cards. A debit card can allow you to make purchases without carrying cash or writing a check, help you avoid paying interest on purchases and possibly help reduce the risk that you’ll overspend.

But because debit cards are directly linked to a bank account — and the money in that account — it’s especially important to keep them secure.

Let’s look at a common security measure that card issuers use to help protect debit cards — the debit card security code.

  • What is a debit card security code?
  • How does a debit card security code work?
  • What are other ways to fight debit card fraud?

What is a debit card security code?

Like a credit card, your debit card has multiple sets of numbers printed on it. There’s the card number, which is a 15- or 16-digit number that’s usually on the front of your card. And your card may also have issued and expiration dates on the front.

A debit card security code is a three- or four-digit number located in the signature box below the magnetic stripe on the back of the card. You may also hear this number referred to as a card verification code, or CVC, or a card verification value, or CVV.

Both debit and credit cards can have a card security code. Some card issuers, like American Express, feature this code on the front of the card.

But there are key differences between what happens in terms of security when you swipe that magnetic strip with a debit card versus a credit card.

When you use a debit card to make a purchase or pay a bill, you’re using your own money, drawn directly from the bank account the card is linked to. Using a credit card is essentially using the card issuer’s money, which it’s agreed to loan to you, to make a purchase or pay a bill.

How does a debit card security code work?

Because your debit card is linked directly to your bank account (or a specific sum of cash if you’re using a prepaid debit card), it’s important to protect it as vigilantly as you would cash.

Generally, debit card security codes are just one layer of security for card transactions — you may be asked for yours if you’re making a purchase online or over the phone. By asking you for this code, along with your account number and other information, the merchant is trying to verify that you’re the cardholder or authorized user. That’s because you’ll typically need to have the card in your possession to share this code.

A debit card security code works differently from the personal identification number, or PIN, that you selected when you got your card and that you enter when you withdraw money from an ATM or make an in-person debit purchase.

It also works differently from the unique code generated by EMV chip cards to help prevent fraud. These cards have a chip on the front that is read when you insert your card into the card reader. The reader scans the chip, you enter your PIN or use your signature, and the chip produces a unique code for that particular purchase. Unlike the security code on the back of your card though, you never see this unique code.

Along with your card number and expiration date, it’s important to protect your debit card security code, because someone can use this information to make a fraudulent purchase with your card — even if they don’t physically have the card in their possession.

Learn more about identity theft

What are other ways to fight debit card fraud?

Credit card issuers and financial institutions aren’t the only ones responsible for protecting your debit card. There are also steps you can take to help keep your card secure.

  • Never tell anyone your PIN. And don’t write it down or carry it with you.
  • Avoid using a debit card to make online purchases — a credit card may be safer.
  • If your financial institution offers them, sign up for email or text message alerts that tell you about activity on your account.
  • Monitor your bills, bank account statements and credit reports for any signs of fraudulent activity, like withdrawals you didn’t make or purchases you didn’t authorize.

Along with not sharing your card number or security code with anyone, it’s important to contact your bank, credit union or card issuer immediately if your card is lost or stolen.

If you notify the debit card issuer within two business days after you discover your card is missing, you can only be held liable for $50 or the amount of any fraudulent transactions that happened before you notified the issuer — whichever is less. But if you take up to 60 days to notify the issuer, your liability could be up to $500. And keep in mind that if you report the loss more than 60 days after your statement, you may lose everything that was taken out of your debit account.

Bottom line

Debit card use continues to grow, and so does card fraud. Understanding how security features like a debit card security code can help protect your debit card — and what steps you can take to reduce the risk of fraud — can help you safely enjoy the convenience of paying with a debit card.

About the author: Satta Sarmah Hightower is a writer, editor and content marketing manager with a decade of experience in the media industry. Her writing focuses on healthcare, personal finance and technology. Satta has produced sponso… Read more.

What’s a debit card security code and why is it important? (2024)

FAQs

What’s a debit card security code and why is it important? ›

For example, some websites may store payment information, specifically just the card number. The security code then operates as a way to confirm the card information and potentially verify that the person making the transaction is the cardholder.

What is the purpose of the card security code? ›

A credit card security code is a three- or four-digit number designed to prevent fraudulent transactions. You might hear this code referred to as the Card Verification Value (CVV). Other common names for it include Card Security Code (CSC), Card Verification Code (CVC or CVC2) and Card Identification Number (CID).

What is the importance of CVV in debit card? ›

A CVV code is a three- or four-digit number on a credit or debit card that helps prevent credit card fraud. It's meant to protect cardholders from unauthorized transactions by providing a second layer of protection. A CVV number is also known by other names, including: Card security code (CSC)

Can you use a debit card without the security code? ›

How does a debit card security code work? There is a CVV encoded on the magnetic strip on the debit card so it is not necessary to key it in for in-person purchases. However, when making online purchases or purchases over the phone, the CVV is to be provided.

What does the security code on a debit card? ›

A debit card security code is a three- or four-digit number located in the signature box below the magnetic stripe on the back of the card. You may also hear this number referred to as a card verification code, or CVC, or a card verification value, or CVV.

What is CVV needed for? ›

A CVV number is the acronym for Card Verification Value. It is required to complete transactions using cards, but along with that, it also provides added security against scams.

Is it safe to give card security code? ›

Handing over your CVV for purchases completed offline is risky, because it gives someone the opportunity to steal that information. With your CVV code, they would have everything they need to make fraudulent online transactions in your name. When making in-person purchases, do not give out your CVV code.

What happens if you don't have a CVV on your debit card? ›

Debit cards without CVVs are not approved for online transactions. Credit Cards missing a Security Code are either not approved for international transactions and/or not approved for online transactions. Was this article helpful?

Does the CVV number matter? ›

CVV code stands for card verification value, or card verification code (CVC). It's a 3-4 digit number written on your credit or debit card. The CVV number is used as an extra layer of security to prevent anyone who knows your card number from making purchases online in your name.

Is it safe to give debit card number and CVV? ›

Never give out your CVV when using your credit or debit card in person. Anyone asking for your CVV during an in-person transaction could be trying to steal your information. It's only safe to give your CVV number over the phone or on a secure site. Never give out your CVV when paying in person.

Can payment be taken without security code? ›

It's illegal and impossible to skip a CVV code if a merchant requires it. The CVV code is a layer of security that proves you're the authentic card holder when you make online or phone purchases (these are called card-not-present transactions).

Can someone use my debit card without my PIN? ›

Fraudsters can still use your debit card even if they don't have the card itself. They don't even need your PIN—just your card number. If you've used your debit card for an off-line transaction (a transaction without your PIN), your receipt will show your full debit card number.

What is the difference between PIN and security code on debit card? ›

No. A debit card CVV, also known as CVC, is a 3 digit code permanently printed on the back of the debit card by the card brand. The CVV is used as an extra layer of security when performing a card not present transaction. A Debit card PIN stands for “Personal Identification Number” and is set by the cardholder.

What does CVV mean on a debit card? ›

CVV stands for Card Verification Value. This code is usually composed of a three-digit number provided by the companies that make the bank cards (American Express, Visa, Mastercard, etc.). The CVV code is usually located on the back of the card, although in some cases it may be found on the front.

Do ATMs ask for CVV? ›

Difference between CVV in an ATM card and a PIN

You need not enter the CVV at ATMs for cash withdrawals, balance checks, PIN changes, etc. But, you need CVV for online payments or swiping cards.

What is meant by security code? ›

A card security code (CSC; also known as CVC, CVV, or several other names) is a series of numbers that, in addition to the bank card number, is printed (not embossed) on a credit or debit card.

What is the point of the security code? ›

The CSC is used as a security feature for card not present transactions, where a personal identification number (PIN) cannot be manually entered by the cardholder (as they would during point-of-sale or card present transactions). It was instituted to reduce the incidence of credit card fraud.

Why is CVV number used? ›

A card verification value or a CVV number is a 3-digit code printed on the back side of a credit or debit card. Also known as card security code or card verification code, it acts as an additional security layer protecting your data during online transactions or card swipes at POS machines.

Why do you need CVV? ›

By asking for the CVV code, the merchant is adding an extra level of security to ensure that the cardmember is the one making the purchase. That piece of your credit card information is not present in the magnetic stripe. Therefore, many common fraud schemes, such as skimming, won't work.

What is the significance of CVV? ›

The Card Verification Value (CVV), Card Security Code (CSC), Card Identification Number (CIN), or CVV2 are different names meaning the CVV. This number is crucial for completing online transactions and must not be shared with anyone. This number is issued by the bank or a financial institute that delivers the card.

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