Abstract: The main theme of this system to propose a application which is helpful for the society in order to reduce the frauds in ATM machine. When users open a new account in bank for his transaction the bankers will collect all information regarding to the account holders like name, phone number and also fingerprints to enroll. When user wants to do transactions in ATM machines, first process is user has to give fingerprints on the fingerprint module then automatically 4 digit number will be generated to the authorized customer phone number through GSM modem which is connected to the microcontroller. The 4-digit number is received by authorized customer, then has to give input to the ATM machine. After giving input, the ATM machine will verify whether it is valid or not if it is valid further transaction can be continued if not ATM machine shows invalid alert message.
Keywords: ATM, fingerprint biometric, PIN, security.