KB Kookmin Bank said on the 26th that it had found 2,091 more people whose personal information leaked in an external hacking attack. Together with the 119 identified on the 2nd of this month, the number of victims reaches 2,210.
A bank official said on the 26th, "We sincerely apologize to our customers for failing to fully grasp the scale of the incident at the outset," adding, "We will do our utmost to thoroughly prevent a recurrence and protect customers." According to the financial sector on the 27th, the newly revealed 2,091 people consist of 1,631 customers and 460 employees.
The bank explained that this additional batch did not stem from a new hack. It came to light, it said, as the data and processing procedures of the affected system were meticulously re-verified.
KB Kookmin Bank decided to notify the newly confirmed customer victims of the leak and to individually guide them on how to prevent secondary damage.
Earlier, on the 2nd, the bank announced that the names, phone numbers, addresses and encrypted resident registration numbers of 119 customers had leaked in the hack. At the time, the bank said the employee mobile work-support system was the leak path, and set out a policy of compensating in full if secondary damage occurs.