Hit by an ATM security breach, a few open and private division banks have reviewed or hindered more than 32 debit cards to protect their clients from any monetary extortion.

Bankers said the reviewed cards are those that have been doubted of breaching the security measures. More clients have been asked to mandatorily change their PIN and other security numbers to resume utilizing the blocked cards. 

While there were few reports about specific cards influenced by security breach, bankers blamed the fault on an installment service supplier that oversees ATM system of a private segment bank. 

State-run SBI is said to have recalled around 6 lakh cards, while others like Bank of Baroda, IDBI Bank, Central Bank and Andhra Bank have likewise supplanted debit cards of few clients as a security measure.

Among the private part players include ICICI Bank, HDFC Bank, and Yes Bank have requested that clients change their ATM PINs. HDFC Bank additionally exhorted its clients to utilize its own particular ATMs for doing any exchange. 

The security breach happened through a malware in the frameworks of Hitachi Payments Services, which serves ATM system of Yes Bank. 

Hitachi Payment Services, however, said its system's security was not traded off. As per bankers, the breach occurred in a manner that anybody using the said bank's ATMs as a part of the locale may stand to get influenced.

Worried over the issue, the Finance Ministry has looked for points of interest from banks as likewise the extra strides that should be taken to turn away such occurrences. 

As per the Ministry sources, the Department of Financial Services has looked for data about ramifications of such information trade off from Indian Banks Association.