what is atm security code

The ATM security code is officially known as the Card Verification Value (CVV), Card Verification Code (CVC), or Card Security Code (CSC). This is a unique three- or four-digit number printed on your debit card, typically found on the back near the signature strip. Its primary purpose is to provide an extra layer of security for online transactions and other purchases where the physical card is not present, verifying that the card is in your possession. This code is separate from your four-digit Personal Identification Number (PIN) used at ATMs and physical store terminals.