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Mirae Asset Securities said it suffered cyberattacks that leaked account numbers of about 3,800 customers and personal information of over 35,000 current and former employees and contractors, Yonhap and the Korea Times report. The attacks hit its mobile web phone-authentication login service and its 'mi-global' groupware system on Nov. 4-5, with abnormal external IP access detected and blocked, according to Dong-A Ilbo. The Kyunghyang Shinmun reports that 35,255 employees' data, including retirees and outsourced workers, were exposed, while Dong-A Ilbo notes that sensitive data like resident registration numbers and passwords were not leaked, with no financial damage. The incidents come as the Financial Services Commission reported over 470,000 personal data records leaked from 37 financial firms in the past month, with funds stolen estimated at 1 billion won ($745,000), the Korea Times and Yonhap report.