A Survey on the Security of an ATM Transaction

The previously used signature based system was replaced by a pin number in an ATM system. But due to risks of fraudulent activities the pin number was replaced by the biometric system. The biometric system may be a fingerprint, iris, retina, veins, etc. In this system the cash would be dispersed only if the user is an authenticated person. Further direct or spoofing attacks have today motivated us to enhance the security of the biometric system by using image quality assessment for liveness detection. This paper emphasizes in a general way on how the ATM transaction has been made secured by presenting a literature survey of the previous systems and comparing it with the recent biometric system using image quality assessment for fake detection which will show the improvement in the security level of the financial transaction being made using the ATM machine.