South Korea hit e-commerce giant Coupang with a record US$408 million fine Thursday over a leak that allegedly exposed more than 30 million customers' data and has provoked the ire of U.S. lawmakers.

South Korea's data protection regulator on Thursday fined e-commerce platform Coupang a combined 624.7 billion won ($410 million) over a massive data breach and

Coupang was slapped with a record fine of 624.7 billion won ($409 million) for a massive data breach involving more than 33 million users, marking...