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South Korea blames Coupang data breach on management failure, not sophisticated attack

Databreaches •Dissent • February 13, 2026

Heekyong Yang and Hyunjoo Jin report: South Korean officials blamed a massive data leak last year at Coupang on management failure, rather than a sophisticated cyberattack, and urged the e-commerce giant to fix vulnerabilities in its security systems. Announcing the first findings of a government-led probe, the Science Ministry said on Tuesday a former Coupang... Source

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Coupang Data Breach Attributed to Management Failures, Not Cyber Attack 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. 6 sources 60

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South Korea blames Coupang data breach on management failure, not sophisticated attack

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