MUMBAI: Internet banking and credit cards are not the only targets on a fraudster’s radar. ATMs are also fast emerging as soft targets with fraudsters constantly evolving their techniques.
Recently, an ATM of a public sector bank in Nagpur was hacked by a member of the maintenance staff. In a comparatively crude attack, the maintenance employee tapped the wires connecting the machine to the server using a small transistor-like device. The device basically intercepts the signal and stores it, making it possible to replicate it later.
So, when an unsuspecting customer walked in to the ATM centre, the digital signals passing from the machine to the bank’s server were tapped. These signals were then re-sent from the back of the ATM machine with the fraudster’s accomplice standing in front of the ATM slot for withdrawing money without actually carrying the ATM card with him. Since the server received the same signal from the ATM as that of the cardholder wanting to withdraw cash, it dispensed the same amount once more.
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