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Coupang files lawsuits to contest record $462 million South Korean data breach penalties

Thenews.Pk • October 8, 2026

E-Commerce giant challenges regulators over massive fines tied to historic customer information leak

E-commerce giant Coupang has filed administrative lawsuits challenging South Korean regulatory penalties stemming from a massive data breach

Coupang said on Thursday it has filed two administrative lawsuits against 620 billion won ($462.75 million) in fines imposed by South Korea's government over a data breach.

Reuters report, E-Commerce giant challenges regulators over massive fines tied to historic customer information leak.

The fines levied by South Korea's Personal Information Protection Commission, follow an investigation into a security lapse that exposed personal account data affecting tens of millions of users.

As reported, regulators cited inadequate access controls and delayed reporting windows as primary justifications for the record-breaking financial penalty.

Coupang’s legal challenge argues that the enforcement actions and calculations are disproportionate, maintaining that the company implemented swift protective measures following the discovery of the breach.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Coupang Challenges $462 Million Fine Over Major Data Breach Coupang, a leading e-commerce platform in South Korea, has filed two lawsuits against a record fine of 624.7 billion won ($462 million) imposed by the Personal Information Protection Commission due to a significant data breach affecting 37.5 million users. The breach, which occurred in November 2025, involved unauthorized access to personal information, including names, phone numbers, and delivery details. Coupang argues that the penalties are disproportionate, claiming they took swift action to mitigate the breach after its discovery. The fines include 423.6 billion won for the data breach itself and an additional 201.1 billion won for violations related to unauthorized data collection. This incident has also raised tensions between South Korea and the United States, with U.S. officials expressing concerns about the treatment of Coupang's Korean operations during the investigation. 4 sources 41

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Coupang files lawsuits to contest record $462 million South Korean data breach penalties

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