South Korea Fines Coupang $400M in Record Data Breach Penalty

Coupang fined $400M for a data breach affecting 37.5M users in South Korea, highlighting poor data management and unauthorized data collection.

By Content Team

Jun 12, 2026

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South Korea has slapped e-commerce giant Coupang with a record $400 million fine after a data breach exposed personal information belonging to roughly 37.5 million users — more than half the country's population. Seoul's Personal Information Protection Commission found the company failed to properly manage authentication keys and access controls. Regulators added a separate penalty for collecting data without user consent.

Coupang says the breach likely started as early as June through a foreign server and initially affected 4,500 accounts before ballooning to nearly 34 million. The company's CEO resigned following the incident. Coupang plans to fight the ruling in court.

Source: BBC News

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