Mirae Asset Securities hit by data breach affecting 35,000 employees - 매일경제
South Korean brokerage Mirae Asset Securities has suffered a cyberattack exposing personal information of over 35,000 current and former employees and account numbers of approximately 3,800 customers.
The incident adds to a series of recent cyberattacks targeting South Korea's financial sector, extending security concerns from banks, insurers and cryptocurrency exchanges to securities firms. The company detected suspicious access from external IP addresses targeting its mobile web phone authentication login service and internal groupware system, mi-global, between Nov. 4 and 5.
Exposed Information
Mirae Asset Securities said approximately 3,800 customer account numbers were exposed, but sensitive personal identifiers, including resident registration numbers, were not compromised. Personal information belonging to 35,255 employees, including former staff and outsourced workers, was also exposed.
The compromised data included names and employee identification numbers for most affected individuals. Email addresses, mobile phone numbers and encrypted passwords were also accessed in some cases.
Company Response
A Mirae Asset Securities official said the company immediately blocked the unauthorized access routes and activated its emergency response system. The incident involved unauthorized viewing of data by external parties, but there was no malware infection or service disruption.
Regulatory Response
South Korean financial regulators are reportedly considering whether to dispatch an inspection team, depending on their assessment of the severity of the incident. No financial losses have been reported as a result of the breach.
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