Coupang Data Breach Exposes 33.7 Million Customer Accounts
South Korea's largest e-commerce platform, Coupang, disclosed a data breach that exposed personal information of approximately 33.7 million user accounts. The breach, attributed to a former employee who exploited unrevoked authentication keys, involved names, email and postal addresses, phone numbers, and order histories. No financial information or passwords were compromised. The incident led to a record fine from the Korean Personal Information Protection Commission (PIPC) and an investigation by South Korean authorities. Coupang initially released a statement on November 29, 2025, confirming unauthorized exposure of approximately 4,500 accounts, with a broader admission of 33.7 million accounts on November 30, 2025.
Signal context
First seen: Nov 30, 2025
Last updated: Jun 25, 2026
Status: Public signal
Key points
- Initial disclosure on November 29, 2025, with a broader admission on November 30, 2025.
- Approximately 33.7 million customer accounts affected.
- Exposed data includes names, email addresses, postal addresses, phone numbers, and order histories.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Information
Likely country: Location not provided
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: outside the affected organization
- Source type: possible insider or internal misuse
Impact area: Confidentiality
Likely asset: User or customer data
- 26 signals in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
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