When is the CVV2 recommended for use?

The recommendation for using CVV2 primarily applies to internet transactions because this security feature serves as an additional layer of verification for card-not-present situations, which are common in online shopping. The CVV2 code, found on the back of a credit or debit card, helps to confirm that the cardholder is in possession of the physical card, even though they are making a purchase from a location that is not face-to-face.

In-person transactions typically require the card to be swiped or inserted into a payment terminal, making the CVV2 less critical in that context, whereas international transactions may or may not require it based on the merchant's policies and the country's regulations. Therefore, the primary focus for CVV2 as a recommended security measure is within the realm of internet transactions where the risk of fraud is heightened without the physical presence of the card. This enhances the overall security of the transaction by mitigating the risk of unauthorized use when the cardholder cannot physically present their card.