Coupang Data Breach: Ex-Employee Access Traced
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- What: A data breach at Coupang, South Korea's largest online retailer, exposed the personal data of 33.7 million customers.
- A massive data breach at Coupang, South Korea's leading online retailer, has been traced back to a former employee who retained access to internal systems after their departure.
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Coupang Data Breach: Former employee Linked to Massive customer Data exposure
Table of Contents
(Last Updated: December 11, 2025)
A massive data breach at Coupang, South Korea’s leading online retailer, has been traced back to a former employee who retained access to internal systems after their departure. The breach compromised the personal information of 33.7 million customers, making it the country’s largest cybersecurity incident to date.
what Happened?
On December 1, 2025, Coupang announced that it had suffered a data breach impacting 33.7 million customers. The exposed data included sensitive personal information such as names, email addresses, physical addresses, and order details. The breach initially occurred on June 24, 2025, but remained undetected for several months, only being discovered on November 18, 2025, during an internal investigation.
The Seoul Metropolitan Police Agency, following a raid on Coupang’s offices earlier this week, revealed that a 43-year-old Chinese national, a former Coupang employee, is the primary suspect. The individual allegedly retained access to internal systems after leaving the company.
Timeline of Events
Here’s a breakdown of the key events:
| Date | Event |
|---|---|
| June 24, 2025 | data breach occurs. |
| november 18, 2025 | Coupang discovers the data breach and launches an internal investigation. |
| December 1,2025 | coupang publicly announces the data breach. |
| December 6,2025 | Coupang publishes an update,stating the stolen information has not been leaked online. |
| December 9, 2025 | Police raid Coupang’s offices to collect evidence. |
| December 10, 2025 | Coupang CEO Park Dae-Jun resigns and apologizes for the breach. |
| december 11, 2025 | Police identify a former employee as the primary suspect. |
What data was Compromised?
The following types of customer data were exposed in the breach:
- Names
- Email Addresses
- Physical Addresses
- Order Information
Important Note: While Coupang claims the stolen information has not been leaked online, the potential for misuse remains. Affected customers should remain vigilant for phishing attempts and monitor their financial accounts.
Who is Affected?
Approximately 33.7 million coupang customers are affected by this data breach. This represents a significant portion of the South Korean online shopping population. The impact extends beyond simple inconvenience, as compromised data can be used for identity theft, fraud, and targeted phishing attacks.