NSA obtained details for 12 million customers of South Korean telecommunications giant . Bank details , home addresses obtained for three - quarters of SK Telecom 's users . Details used by an accomplice to sell cell phones posing as KT representative . Second major data leak in South Korea since September .
Hackers steal details for 12 million customers of South Korean phone giant . Bank details , home addresses obtained for three-quarters of KT Corp 's users . Details used by an accomplice to sell cell phones posing as KT representative . Second major data leak in South Korea since January .