In order to check frauds, the RBI has asked banks to impose monetary limit for international transactions on credit and debit cards and refrain from issuing cards with global access unless specifically sought by the customer.

"All the active magstripe international cards issued by banks should have threshold limit for international usage. The threshold should be determined by the banks based on the risk profile of the customer and accepted by the customer by June 30," it said.

Till the time of completion of the process a threshold limit not exceeding $500 may be put in place for all debit cards and all credit cards that have not been used for international transactions in the past, it said.

The notification has been issued following cyber attacks, which according to RBI has become "more unpredictable".

"Electronic payment systems are becoming vulnerable to new types of misuse, it is imperative that banks introduce certain minimum checks and balances to minimise the impact of such attacks and to arrest or minimise the damage," it said.

Besides introducing additional security features in the card, banks would also be required to put in place a real time fraud monitoring system and a mechanism to ensure that cards can be blocked through an SMS by the cardholder.

These initiatives, RBI said are needed to ensures that transactions effected through such channels are safe and secure and not easily amenable to fraudulent usage.

The announcement comes in the backdrop of a slew of card frauds that has taken place in the recent past leading to unauthorised withdrawal of sums by unscrupulous agents. (PTI)