Daishin Securities Apologizes for Leak of More Than 38,000 Customers' Personal Information, Pledges to Prevent Recurrence

Daishin Securities apologized for the leak of more than 38,000 customers' personal information.

According to Daishin Securities on October 28, an internal investigation found that information belonging to a total of 38,490 people had been leaked. The company is preparing measures to protect affected customers and prevent a recurrence.

The leak came to light on October 17, when signs of abnormal access by a hacker were detected on a server linked to the remote opening of securities accounts for discretionary investment services. The company took emergency measures immediately after detecting the unusual external access, including blocking the IP addresses used in the attack and those used to route around security controls.

Daishin Securities immediately reported the incident to regulators and conducted a detailed investigation into the scope of the breach with the Korea Financial Security Institute to determine whether personal information had been leaked. After examining all of more than 60,000 signals disguised as normal service traffic, the company confirmed on October 26 that eight types of information had been exposed: customer names, email addresses, residential addresses, telecommunications IDs, bank names, deposit and withdrawal account numbers (encrypted), Daishin Securities comprehensive account numbers (encrypted), and mobile phone numbers (encrypted). Based on information available so far, there is no evidence that the leak resulted in secondary harm to customers, and the hacker did not gain unauthorized access to core business systems.

Daishin Securities plans to notify each affected customer of the types of information exposed and to take swift action if any harm is confirmed. To prevent a recurrence, the company will strengthen access controls and its system for detecting and blocking suspicious activity on the server, and will step up security vulnerability checks on externally linked systems. It also plans to compensate customers who suffer losses due to the leak of their personal (credit) information in accordance with applicable laws and procedures.

Jin Seungwook, CEO of Daishin Securities, said, "We take this personal information leak very seriously and sincerely apologize to our customers. We will responsibly implement the measures needed to protect our customers and prevent a recurrence."

This content was produced with the assistance of AI translation services.