Coupang Data Breach History

This page tracks the Coupang data breach history and cybersecurity incidents affecting Coupang (South Korea). BreachHistory currently indexes 3 publicly disclosed or catalogued incidents spanning 2025 through 2026, with approximately 71.5 million records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The Coupang breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.

Largest Coupang Data Breaches

The largest indexed incidents include the 2026 Coupang — 37.55M accounts; record ₩624.6B PIPC fine (Feb breach), the 2025 Internal portal compromise, and the 2026 Coupang Taiwan — 200K accounts. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Coupang or a regulator. Below is the list of large data breaches:

• 2026 2026 Coupang — 37.55M accounts; record ₩624.6B PIPC fine (Feb breach) — about 37.5M records exposed · Catalogued incident
• 2025 2025 Internal portal compromise — about 33.7M records exposed · Catalogued incident
• 2026 2026 Coupang Taiwan — 200K accounts — about 200.0K records exposed · Catalogued incident

What Information Was Exposed?

Depending on the incident, exposed data may include email addresses, phone numbers, names, physical addresses, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

Coupang Data Breach 2026

At the time of this update, BreachHistory catalogues 2 2026 incidents related to Coupang. Most recent entry: 2026 Coupang Taiwan — 200K accounts. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a Coupang data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This Coupang breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.