Coupang personal data breach legal and financial impact

Following a massive personal data breach in late 2025 that exposed the information of approximately 33.7 million users, Coupang has faced significant financial and legal repercussions.

In its second-quarter earnings report, the company recorded an operating loss of roughly $570 million. This loss was attributed to a large government fine of approximately 6.25 trillion won related to the breach, alongside increased marketing costs to regain consumer trust. Despite the financial strain, the company reported that its active customer base returned to pre-breach levels of 24.7 million.

The legal fallout has expanded to the United States, where a class action lawsuit was filed in the U.S. District Court for the Eastern District of New York seeking $5 million in damages against Coupang and its chairman, Bom Kim. A preliminary hearing focused on a jurisdictional dispute: Coupang’s legal team argued for dismissal, stating the incident occurred on its South Korean platform, while plaintiffs argued that the U.S.-based parent company, Coupang Inc, is subject to jurisdiction as a New York Stock Exchange-listed corporation that reported the breach to the SEC.