The CVV code is required by most sites to authenticate online payments. In fact, on the check-out page of any e-commerce, the user who makes a card payment must enter the following data:
• Card identification number;
• Cardholder data (Name and Surname);
• Card expiry date (month and year);
• CVV code.
The CVV is the code that allows you to verify the actual truthfulness of the card. In fact, by inserting it, the bank can make sure that the card has not been cloned or stolen. There are authentic websites online to buy CVV in case of any loss or expiration of CVV.
It is essential to remember that the CVV code is not a PIN . In fact, the PIN is a 5-digit code secretly provided to the cardholder. It is used to authenticate ATM withdrawals and in-store payments via a POS payment terminal . Otherwise, the CVV is the 3 or 4-digit code shown on the card, useful for remotely moving money. In payments with POS or NFC technology, the insertion of the CVV is not required. In fact, all the information connected to it is already transferred to the terminal via the magnetic strip.
What if the wrong credit card CVV is entered? The transaction will simply fail and must be repeated correctly.

Online credit card payment:
Here are 5 simple tips to check the security of your online transactions:
1. Check that the payment URL contains the wording "https" and that the browser is safe by identifying the padlock symbol at the bottom of the page;
2. Never communicate your payment card details via email or SMS;
3. Cover the CVV code of your card with an adhesive strip;
4. Periodically check the statement to verify that there are no unauthorized transactions;
5. Activate the notification service via App or SMS for each movement of money made from your credit, debit or prepaid card.