Data of nearly 3 million Lotte Card customers leaked

Seoul: Lotte Card Co., the country's fifth-largest card issuer, said on Thursday that personal data of some 3 million customers has been leaked in a hacking incident last month, but there has yet to be any report of improper use. Lotte Card said the leaked data, estimated at 200 gigabytes, included identification numbers, internal identification numbers and connecting information.

The leaked data also included card verification codes, card numbers and card validity period of some 2,80,000 customers, critical information that may expose their owners to credit card fraud, according to the company, reports Yonhap news agency.

Lotte Card CEO Cho Jwa-jin issued a public apology and announced response measures, including full compensation for any reported damage caused by improper use of stolen data.

"Leaked data was created in the online settlement process via online servers between July 22 and August 27," Cho said.