South Korea's telecom watchdog said Thursday it will impose a fine of 85 million won (US$83,554) on the country's top fixed-line operator, KT Corp., over its recent data leak incident, a decision that will strengthen an ongoing class action lawsuit by the victims of the leak. The Korea Communications Commission (KCC) decided on the disciplinary measure after hackers stole some 11.7 million pieces of personal information from 9.81 million KT subscribers through the company's website between August 2013 and February this year.