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Mirae Asset Securities confirmed that hackers breached its systems, leaking personal information of some 39,000 customers and employees, Yonhap and the Korea Times report. The attack hit the firm's mobile-web phone authentication login service and its 'mi-global' groupware system on Nov. 4-5, exposing account numbers of about 3,800 customers and personal data of 35,255 employees, including retirees and outsourced workers, according to the Kyunghyang Shinmun. The breach is part of a wider wave: the Financial Services Commission said over 470,000 personal data records have been leaked from 37 financial firms in the past month, with funds stolen estimated at 1 billion won ($745,000), Yonhap reports. Korean media frame the incident as the latest in a growing series of cyberattacks on the country's financial sector, with KBS World noting the regulator's tally of affected firms.