The Securities and Exchange Commission (SEC) is monitoring Thailand Securities Depository Co (TSD) after the central securities depository detected unauthorised access to personal data stored on its TSD Investor Portal.Anek Yooyuen, deputy secretary-general and spokesman of the SEC, said the regulator received a preliminary incident report from TSD on July 26 after the company identified unauthorised access to its investor portal system.
“The SEC immediately coordinated with TSD to establish the facts, determine the root cause of the incident and ensure appropriate measures are implemented to prevent any further impact,” Mr Anek said.
The SEC said TSD blocked access from suspicious sources and user accounts, disabled affected system connections and stepped up cybersecurity monitoring as part of its containment measures.
TSD confirmed separately that the incident resulted in the exposure of some users’ personal information. The company said it immediately isolated the affected system, stopped the data leakage and strengthened cybersecurity surveillance to prevent further unauthorised access.
TSD stressed that the incident did not affect securities trading, financial information or investor assets it holds in custody. Trading and settlement operations continue to function normally.
