Most of the complainants have said that before the fraud, they had last withdrawn money from the SBI ATM near HP petrol pump at the Nair Hospital junction. Pic/Atul Kamble

An estimated 3.2 million debit cards from multiple banks were compromised not more than a fortnight ago in a huge data breach. A similar fraud has struck again, only this time, in at least two busy ATM machines in Central Mumbai.