A total of 32 lakh debit cards across 19 banks could have been compromised on account of a purported fraud, the National Payment Corporation of India said in a statement.

The issue was brought to light when State Bank of India blocked the debit cards of 6 lakh customers on October 14. This was done after the bank was alerted to a possible fraud by the National Payment Corporation of India, MasterCard and Visa, said Managing Director Rajnish Kumar in a telephonic interview with BloombergQuint.

In a statement released on Thursday evening, the NPCI clarified that the problem was brought to their attention when they received complaints from a few banks that customers’ cards were used fraudulently, mainly in China and the U.S., while those cardholders were in India.

Source: The Big Debit Card Breach: Three Things Card Holders Need To Understand