Korea's financial regulator said Thursday it will move to strengthen oversight of major retail platforms in coordination with other government agencies following a recent data breach involving e-commerce giant Coupang. Financial Supervisory Service (FSS) Gov. Lee Chan-jin said in a New Year's address that the regulator plans to pursue institutional reforms to apply supervisory frameworks for large retail platforms similar to those used for financial institutions. The remarks were widely seen as aimed at Coupang, which said the breach affected about 3,000 user accounts, far fewer than its initial estimate of 33.7 million disclosed in late November. The government, however, rejected the revised figure last week, saying about 33 million customers were affected. Coupang is not classified as a financial services provider and has therefore remained outside the scope of direct supervision by financial authorities. The FSS has since joined a public-private investigation into the incident.