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Last Update: 10/27/2026 at 6:00 AM EST
Coupang Data Breach
Coverage from Reuters, CNBC, and others
South Korea’s Personal Information Protection Commission fined Coupang after a major breach exposed personal information associated with more than 37 million people, including millions of Coupang customers.
Authorities cited delayed breach notification and unauthorized access involving a former employee and a stolen security key; Coupang apologized and said it would challenge the fine in court. The enforcement also became a point of disagreement between Seoul and Washington after a U.S. House Judiciary Committee report alleged discriminatory treatment of the company. South Korea rejected that characterization and said its actions followed domestic law.
Looking Back
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All Articles53 articles
Important
Wi Sung-lac said South Korea rejected U.S. congressional claims of discrimination in the Coupang data breach dispute at the Blue House in Seoul on July 3.
7/3/2026 • Data Breaches & Exposure Events • General
South Korean authorities fined Coupang 625 billion won after a 2025 breach, prompting U.S. congressional criticism and calls for possible trade action against Seoul.
8/31/2026 • Regulation, Law & Enforcement • General
South Korea's Foreign Ministry disputed a U.S. House Judiciary Committee report after a June $403 million Coupang fine over a 37 million-person data breach.
7/3/2026 • Data Breaches & Exposure Events • General
Wi Sung-lac said South Korea rejected U.S. and Coupang claims on a massive breach, while reporting insider credential access and a 625 billion won fine.
7/3/2026 • Data Breaches & Exposure Events • General
Wi Sung-lac said South Korea would continue defending its handling of the Coupang breach after a U.S. House Judiciary Committee report alleged discriminatory targeting.
7/3/2026 • Data Breaches & Exposure Events • General
Wi Sung-lac said South Korea rejected U.S. House Judiciary Committee allegations of discriminatory treatment in the Coupang data breach case on Friday.
7/3/2026 • Data Breaches & Exposure Events • General
House Judiciary Committee staff released a report in 2026 urging USTR to consider Section 301 action over South Korea's record Personal Information Protection Commission fine tied to a Coupang 2025 data breach.
7/3/2026 • Regulation, Law & Enforcement • General
Park Il said South Korea's privacy enforcement against Coupang followed domestic law after a June $403 million fine tied to a breach affecting 37 million people.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea disputed U.S. congressional claims about Coupang after a June $403 million fine tied to a data breach exposing over 37 million people.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea disputed a U.S. congressional report over alleged discrimination of Coupang after a June fine tied to a breach exposing over 37 million customers.
7/2/2026 • Regulation, Law & Enforcement • General
Park Il said South Korea's enforcement against Coupang followed domestic law after a June fine over a data breach affecting more than 37 million customers.
7/2/2026 • Data Breaches & Exposure Events • General
South Korea disputed a U.S. House Judiciary Committee report after a June fine against Coupang for a mass data breach exposed over 37 million people.
7/2/2026 • Data Breaches & Exposure Events • General
South Korea disputed a U.S. House Judiciary Committee report on Coupang discrimination after a June fine for a 37-million-person data breach.
7/2/2026 • Regulation, Law & Enforcement • General
Wi Sung-lac said South Korea rejected U.S. House accusations about discriminatory treatment of Coupang after a data breach, with authorities citing 33 million account access and China transfer risk.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea rejected U.S. discrimination claims about Coupang in a briefing by National Security Adviser Wi Sung-lac after a report tied to Coupang's massive data breach.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea disputes a U.S. House Judiciary report after a June personal data breach fine against Coupang exposed personal information for more than 37 million people.
7/2/2026 • Data Breaches & Exposure Events • General
U.S. House Judiciary Committee interim report alleges a 2025 Coupang insider data breach triggered large-scale South Korean investigations beginning in 2025.
7/2/2026 • Data Breaches & Exposure Events • General
South Korea’s Foreign Ministry on June enforcement-related privacy breach actions disputed a U.S. congressional report alleging discrimination toward Coupang after exposure of customer data for 37 million people.
7/2/2026 • Data Breaches & Exposure Events • General
South Korean regulators pursued a Coupang data breach case after insider access to 33.7 million accounts, while the United States challenged enforcement authority for the U.S.-registered company.
4/30/2026 • Data Breaches & Exposure Events • General
South Korea FTC designated Coupang founder Kim Bom as controlling entity on April 29 after a 33 million user data breach that triggered domestic raids and diplomatic friction.
4/29/2026 • Data Breaches & Exposure Events • General
Coupang disclosed an insider security key theft exposing 33.7 million users, prompting South Korean enforcement actions and a US-South Korea dispute over legal consequences.
4/24/2026 • Data Breaches & Exposure Events • General
Investors Greenoaks and Altimeter filed notices with South Korea's Ministry of Justice on January 23, 2026, seeking investor-state arbitration over Coupang's data breach.
2/12/2026 • Regulation, Law & Enforcement • General
Interesting
U.S. House Judiciary Committee interim findings in 2024 alleged South Korea discriminated against Coupang after a 2023 breach, involving recovery actions linked to the National Intelligence Service.
7/2/2026 • Data Breaches & Exposure Events • General
A U.S. House Judiciary Committee interim report alleged South Korea conducted discriminatory investigations and recovery actions after a Coupang data breach exposed customer information tied to up to 33.7 million accounts.
7/2/2026 • Data Breaches & Exposure Events • General
South Korean lawmaker Cho Kyung-tae sent letters Friday from South Korea to nine U.S. House members defending Seoul's regulatory action against Coupang's data breach.
8/14/2026 • Regulation, Law & Enforcement • General
South Korea fined Coupang 625 billion won in June after a November 2025 customer data leak, escalating with U.S. lawmakers' enforcement fairness concerns and a California investor class action.
7/20/2026 • Regulation, Law & Enforcement • General
South Korea fined Coupang in the 2020s for a November data leak affecting about 35 million users, prompting U.S. criticism and diplomatic tension.
7/20/2026 • Regulation, Law & Enforcement • General
South Korean minister Kim Jung-kwan meets US officials in Washington as a Coupang 33 million-user data breach leads to fines and US concerns about discriminatory enforcement.
7/19/2026 • Regulation, Law & Enforcement • General
Donald Trump traded Coupang stock in multiple transactions from October to May as US criticism targeted South Korean investigations tied to a Coupang data leak scandal.
7/5/2026 • Data Breaches & Exposure Events • General
Wi Sung-lac and Blue House officials responded after a U.S. House Judiciary Committee report alleged discriminatory attacks linked to Coupang's cross-border personal data breach.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea, after a U.S. House Judiciary Committee interim report, denied nationality-based discrimination allegations tied to a Coupang data breach investigation in Seoul.
7/3/2026 • Data Breaches & Exposure Events • General
South Korea's presidential office rejected U.S. House Judiciary allegations about Coupang's data breach investigation as breach scope and data-transfer details remain disputed.
7/3/2026 • Data Breaches & Exposure Events • General
U.S. House Judiciary Committee issued an interim report in 2026 alleging South Korea coordinated investigations after a 2025 Coupang data breach tied to insider access.
7/2/2026 • Data Breaches & Exposure Events • General
South Korea rejected US House Judiciary Committee allegations of discriminatory enforcement related to the Coupang data breach, following a report tied to a February inquiry.
7/2/2026 • Data Breaches & Exposure Events • General
U.S. House Judiciary Committee staff released a report on July 2 alleging South Korea discriminated against Coupang after a breach exposed about 33 million users.
7/2/2026 • Data Breaches & Exposure Events • General
A House Judiciary Committee report describes South Korea's intelligence-directed recovery of a Coupang laptop in Shanghai after a November breach affecting 33 million customers.
7/1/2026 • Regulation, Law & Enforcement • General
South Korea's foreign ministry said it would avoid discrimination against U.S. tech firms while continuing the Coupang data-breach investigation, after a U.S. lawmakers letter to Ambassador Kang Kyung-wha.
4/23/2026 • Data Breaches & Exposure Events • General
Coupang reported leadership changes after South Korea investigations expanded the estimated number of exposed customer accounts from a 2025 data incident.
4/21/2026 • Data Breaches & Exposure Events • General
Yeo Han-koo met US senators in Washington to rebut discrimination allegations tied to Coupang after a record data breach fine.
7/26/2026 • Data Breaches & Exposure Events • General
Coupang reported Q2 2026 US lobbying spending of $1.28 million amid a South Korea investigation after a breach exposed personal data for 33.7 million customers.
7/21/2026 • Data Breaches & Exposure Events • General
Michael Flynn said the Coupang data breach dispute is straining U.S.-South Korea relations while U.S. defense and economic priorities shift in the Indo-Pacific.
7/15/2026 • Data Breaches & Exposure Events • General
Donald Trump traded Coupang shares from October to May as U.S. and South Korea disputed investigations into a Coupang data breach affecting over 33 million users.
7/5/2026 • Regulation, Law & Enforcement • General
Donald Trump reported 18 Coupang stock trades to the US Office of Government Ethics between October and May while US lawmakers disputed South Korea's Coupang data breach enforcement.
7/5/2026 • Data Breaches & Exposure Events • General
A U.S. House Judiciary Committee report alleges South Korea discriminated against American-owned businesses after the Coupang breach exposed personal data for about 33 million users in South Korea.
7/2/2026 • Data Breaches & Exposure Events • General
House Judiciary Committee released a report in the wake of the Coupang data breach, alleging South Korea discriminated against American-owned businesses during enforcement in Seoul.
7/2/2026 • Data Breaches & Exposure Events • General
South Korea, July 2, said a U.S. House panel report about Seoul's handling of Coupang mischaracterized a nondiscriminatory breach probe tied to a prior massive data breach.
7/2/2026 • Data Breaches & Exposure Events • General
A U.S. House committee chaired by Jim Jordan alleged South Korean enforcement actions after a 2025 Coupang data breach, including covert laptop retrieval in Shanghai.
7/1/2026 • Data Breaches & Exposure Events • General
South Korean regulators investigated a Coupang data breach affecting 33 million customer accounts, escalating into U.S.-Korea political conflict over alleged discriminatory treatment.
5/23/2026 • Data Breaches & Exposure Events • General
South Korea regulators investigated a Coupang breach affecting 33 million accounts, escalating into US-South Korea disputes over treatment of a US-incorporated firm.
5/23/2026 • Data Breaches & Exposure Events • General
South Korea antitrust regulator designated Bom Kim as controlling figure of Coupang after a 33.7 million-user data breach investigation tied to founder-family managerial influence.
4/29/2026 • Data Breaches & Exposure Events • General
About 90 South Korean legislators planned to complain to the US ambassador in Seoul over alleged US pressure in a Coupang case following a reported data-breach incident.
4/28/2026 • Data Breaches & Exposure Events • General
U.S. House Judiciary Committee released a report in 2020s alleging discrimination against Coupang after South Korea's authorities investigated a breach exposing data of 33 million users.
7/2/2026 • Regulation, Law & Enforcement • General
Additional
Financial disclosure filings reported Donald Trump trading Coupang shares from October to May as the Coupang data leak investigation fueled US-South Korea tension.
7/5/2026 • Data Breaches & Exposure Events • General