This is largely due to industry regulations. While it can be comparatively easy for skilled hackers to gain access to credit card numbers and expiration dates, CVVs are much more difficult to track down.
This is the one you must input when making an online purchase. The first is encoded in the magnetic strip used for in-person transactions the second is visible on the card. There are two CVVs associated with most debit or credit cards.
Enter the CVV, which banks and credit card issuers use to reduce fraudulent digital transactions. Creating fake cards has given way to online information theft. Since chip-enabled card technology has managed to sharply cut back on physical card fraud, criminals have shifted their focus to the digital realm.
