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Coupang Data Breach Attributed to Management Failures, Not Cyber Attack

Coupang Data Breach Attributed to Management Failures, Not Cyber Attack

First seen 12 Feb 2026, 21:16 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 16:10 UTC

A data breach at Coupang, affecting over 30 million users, has been attributed to management failures rather than a sophisticated cyberattack. Investigators found that a former employee exploited vulnerabilities in the authentication system, gaining unauthorized access from April 2025 until November 2025. Coupang disputes the findings, claiming only a limited number of accounts were affected.

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Updated 218d ago How this analysis works

Timeline

2025-04-01
Former employee began unauthorized access to Coupang systems
2025-11-30
Unauthorized access to Coupang systems ended
2026-02-10
South Korean officials announce findings of the investigation
2026-02-12
Coupang disputes investigation results, claims fewer accounts affected

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