ANKARA

International bank HSBC said on Wednesday that its operations in Turkey were hacked, and that customers' credit card details had been stolen.

Personal data for 2.7 million customers have been compromised, the bank said in a statement.

HSBC Turkey identified the attack last week through its internal controls. 

“We would like to inform you that HSBC recently identified and stopped a cyber-attack on our credit card and debit card systems in Turkey,” the statement said.

“On identifying the incident, we took immediate action to safeguard our customers. We launched an investigation that is ongoing in cooperation with the Banking Regulation and Supervision Agency of Turkey, and other relevant authorities. All card operations of HSBC Turkey are now functioning normally.”

The information compromised consisted of card numbers and linked account numbers, card expiry dates and card holder names, the bank said.

There is no evidence that any of its customers’ other financial information or personal information was compromised.

The bank stated that its customers may continue to perform all banking transactions as usual.

“As soon as we could, we established the facts and safeguarded the interests of our customers. We apologise to our customers for this incident,” the statement read.

"We are using the strength of HSBC Group’s global network to address this incident, and we have implemented enhanced security measures to improve the security of our information systems and card transactions," the statement added. 

The bank has nearly 3 million customers in Turkey with 330 branches, according to its website. 

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