Overview
A 2025 data breach at Coupang, South Korea’s largest e-commerce operator, affected ~33.7 million customers (per reporting). In June 2026 the Personal Information Protection Commission (PIPC) imposed a record fine of 624.68 billion won (~$409M) — Korea’s largest (per PIPC). In July 2026 the consumer mediation committee recognized Coupang’s liability and ordered it to pay 100,000 won (~$70) to each affected user; on September 16, 2026 Coupang rejected the mediation proposal (per KBS WORLD and The Korea Herald, Sep 16 2026). Separately, in August 2026 Taiwan fined Coupang’s Taiwan unit and its local chief NT$750,000 each over unauthorized access affecting ~200,000 users (per Taiwan ministry, reported Sep 21 2026). Coupang is also weighing an ISDS challenge (per Chosun Ilbo and Sedaily, Jul–Aug 2026).
Companies involved
Settlement amounts
Mediation order: 100,000 won (~$70) per affected user, 15-day acceptance period (per Korea Consumer Agency, Jul 2026); total exposure ~$2.6 billion (per reporting). PIPC fine: 624.68 billion won (~$409M) (per PIPC, June 2026). Payouts depend on acceptance and finalization.
Key dates
- September 16, 2026Coupang rejects the mediation proposal (100,000 won per user); KBS confirms refusal (per KBS WORLD, Sep 16)
- August 30, 2026Coupang weighing ISDS challenge to the outcome (per Sedaily)
- August 17, 2026Taiwan fines Coupang Taiwan unit and its local chief NT$750,000 each over a separate breach affecting ~200,000 users (per Taiwan ministry, reported Sep 21)
- July 31, 2026Consumer mediation order: 100,000 won (~$70) per affected user; 15-day acceptance period (per Korea Consumer Agency)
- June 1, 2026PIPC record fine: 624.68 billion won (~$409M) plus 16.8 million won penalty surcharge (per PIPC, June 2026)
- November 30, 2025Breach window ends; ~33.7 million customers affected (per reporting)
- April 1, 2025Data breach begins (per reporting)
Updates
- Updated Sep 16, 2026Coupang rejected the Korea Consumer Agency mediation proposal (100,000 won per user) on Sep 16, 2026 (per KBS WORLD and The Korea Herald); Taiwan fined Coupang Taiwan unit + local chief NT$750,000 each (Aug 17, per Sedaily).
- Updated Jul 31, 2026Seeded from research (Jul 2026): consumer mediation order — 100,000 won (~$70) per affected user, 15-day acceptance period (per Korea Consumer Agency); PIPC record fine 624.68B won (~$409M, Jun 2026).
Notable filings
No notable filings recorded yet. Docket entries are added from public court records as they appear.
FAQ
What is the Coupang data breach?
A 2025 data breach at Coupang, South Korea’s largest e-commerce operator, affected about 33.7 million customers (per reporting).
What did the regulator decide?
In June 2026 the Personal Information Protection Commission (PIPC) imposed a record fine of 624.68 billion won (about $409 million) — Korea’s largest (per PIPC).
How much compensation will affected users receive?
In July 2026 the Korea Consumer Agency dispute mediation committee recognized Coupang’s liability and ordered it to pay 100,000 won (about $70) to each affected user, with a 15-day acceptance period; total exposure is estimated at about $2.6 billion (per Korea Consumer Agency and reporting, July 2026).
How do I accept the compensation?
Affected users can accept the mediation award through the process described in the order (per Korea Consumer Agency, July 2026). Verify the exact steps on official Korean channels before acting.
Is this a U.S. class action?
No — the compensation runs through South Korean consumer dispute mediation and PIPC regulation, not U.S. class-action litigation (per reporting). Related U.S.-jurisdiction matters are separate; Coupang is contesting U.S. jurisdiction over related matters (per reporting).
Is the matter over?
The mediation order and the PIPC fine were issued in mid-2026 (per PIPC and Korea Consumer Agency), but related litigation continues (per reporting, August 2026). This page tracks the public record.
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