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Imagine this: You are sitting on the sofa under a blanket after a long day at work. Candles are lit, X files is on, and as you’re scrolling through Instagram, you see an ad for a must-have t-shirt.
You can come to the cart. Your phone automatically fills in your shipping address and credit card information but leaves the CVV field blank. You’re frustrated, you’re messing with your brain.
“What is my CVV code?” you think. “Am I going to have to ditch my carefully constructed nest of pillows to find my wallet, pull out my card and type in a number to buy this shirt?!”
The answer is yes. Then you will write an article about it.
Why do we have CVV codes? Do they really matter?
To be clear, your CVV code is not your credit or debit card number — those are usually about 15 digits long, placed next to your name and printed on your card.
CVV codes, in contrast, are short and simple. They are three or four digits long, often hidden in the background and printed in a small font.
CVV stands for Card Verification Value. (Some companies call it CVC, which stands for Card Verification Code, or CID, which stands for Card Identification Number. But it’s all the same.) It serves as “an indicator that you actually have the card in front of you” when you make a purchase, says Jeremy Layton, founder and CEO of Verisave, a credit card processing consulting firm.
CVV/CVC/CID codes – however you want to refer to them – were developed in the United Kingdom in the mid-90s.
At the time, the industry shifted to online-based card payments, so CVV codes “became a standard security feature,” Abhinav Anand, Citi’s head of value cards, lending and commerce, tells me by email.
CVV codes are designed to prevent someone from placing an order online using credit card information stored on a website or app. The idea is that the person who has the card – and who will have access to the CVV – is probably the owner (or at least authorized by the owner), making the exchange of financial information safe.
This is important because digital payments are the norm these days. Anand points to a McKinsey report that found a record high of 92% of Americans making some form of digital payment by 2024. That’s a lot of opportunity for fraud and/or identity theft, costing people more than $12.5 billion in 2024 alone.
Merchants are often responsible for card fraud, so they now often require you to provide your CVV code as part of the checkout process. Usually, it’s not the bank that’s on the hook if the transaction goes sideways – it’s the business that sells that shirt I want, and that business has skin in the game.
Layton says that if someone steals your credit card and makes a purchase with it, you may have to pay it back. Sellers hate chargebacks because 1) money is taken out of them and 2) if they accumulate too many chargebacks, they can be labeled as high risk – and have to pay higher fees.
“The store is like, ‘I have to take every step I can to make sure this is a legitimate, accurate transaction, made by the original cardholder,'” Layton adds. “CVV is one small piece that helps ensure that.”
This is not foolproof (which is why many merchants also require address verification or the expiration date of your card). Layton admits that he memorized his CVV. In many cases, CVV codes are sold alongside stolen credit card account numbers on the dark web.
But Anand says CVV codes are one of the “most effective” forms of authentication because sellers are not allowed to store them, which protects you – at least in theory – from the bad guys.
“Anyone who has access to the merchant’s customer database will not be able to see your CVV, which would be required to complete any transaction,” he adds.
If you try to buy something and enter the wrong CVV, your transaction will probably be rejected. The program will prompt you to enter your information again, and if you get it wrong repeatedly, it may trigger a fraud alert.
An important point
CVV codes exist to protect customers and businesses from fraud while shopping online. Those three or four numbers help merchants verify that you actually have your credit card and that you are who you say you are.
“CVV is like a small part of your security system,” Layton said.
