Taiwan Fines Taishin Securities Record NT$3.6 Million Over App Failures

Taishin Securities merged with MasterLink Securities on April 6, 2026, with Taishin as the surviving entity, lifting its brokerage market-share ranking from 16th to fourth. The integration required customer accounts and electronic trading infrastructure to be shifted across the firms, making system readiness central to investor protection. Repeated outages soon after consolidation drew regulatory scrutiny because brokerage apps are critical market-access channels and failures can trigger duplicate orders, erroneous trades and lost confidence in financial institutions.

Taiwan’s Financial Supervisory Commission on July 21 warned Taishin Securities and imposed an NT$3.6 million ($120,000) fine, the largest penalty levied on a brokerage in the regulator’s history. The systems suffered trading, execution-reporting or portfolio-display disruptions on April 7, April 14, April 20 and May 21. Citing deficient internal controls and cybersecurity testing, the commission also imposed three-month restrictions covering six areas: new business lines, additional branches, investments, capital increases or bond sales, ETF liquidity provision and exchange-traded note issuance.