US Tiger Securities Inc., also known as TradeUP Securities, recently disclosed a data breach that occurred in 2025. The company discovered the incident on July 10, 2025, and determined that unauthorized access to its virtual back-office environment took place between July 8–9, 2025. After completing its review on April 17, 2026, US Tiger Securities began mailing notifications to affected individuals in May 2026. This breach was confirmed by regulatory filings with the California and Texas Attorneys General.
The breach affected approximately 26,985 individuals in the United States and reportedly involved sensitive data. The exposed data types include names, addresses, Social Security numbers, driver's license/government ID numbers, medical information, health insurance information, and financial information. The extent of specific data types exposed for each individual remains unclear.
More details about the breach may emerge as investigations continue and as individuals receive their notification letters. Consumers should monitor for further updates from US Tiger Securities Inc.