there are chances that the personal identification number(pin) provided by the banks for the access of atm cards be misused due to careless handling or due to shoulder peeking. consequently, various shoulder-surfing resistant methods have been proposed. however, the security analyses used to justify these proposed methods are based on the results of experiments involving a limited number of human attackers. the proposed idea deals with providing a shuffled keypad to prevent guessing the pin and

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... as a part of improved safety, an arrangement to introduce an information system that alerts the nearby police station if anysuchmisuseof cards is noted.