Mirae Asset Global Investments says unauthorized access exposed information in certain business web systems. According to the company, ordinary investor information, unique identifiers and personal credit data were not involved, and no financial loss or major service interruption has been found. Measures include blocking access paths, rate limits, fixes to authorization checks and disabling externally created accounts. Its initial statement that there was no evidence of direct server or database intrusion does not replace the ongoing external investigation into cause and scope.