what is atm pin in debit card

The ATM PIN on a debit card is the Personal Identification Number, a four or six-digit secret code set up by the cardholder. Its main function is to authenticate your identity, which is essential for securely conducting in-person transactions. You are required to enter this unique code to withdraw cash from an Automated Teller Machine (ATM) or to complete purchases at a merchant's physical point-of-sale terminal. The PIN acts as a vital security layer to prevent the unauthorized use of your debit card and protect your bank account funds.