{"id":3092220,"date":"2026-02-12T08:56:32","date_gmt":"2026-02-12T16:56:32","guid":{"rendered":"https:\/\/techcrunch.com\/?p=3092220"},"modified":"2026-02-12T09:36:45","modified_gmt":"2026-02-12T17:36:45","slug":"more-u-s-investors-sue-south-korean-government-over-handling-of-coupang-data-breach","status":"publish","type":"post","link":"https:\/\/techcrunch.com\/2026\/02\/12\/more-u-s-investors-sue-south-korean-government-over-handling-of-coupang-data-breach\/","title":{"rendered":"More US investors sue South Korean government over handling of Coupang data breach"},"content":{"rendered":"\n<p id=\"speakable-summary\" class=\"wp-block-paragraph\">Coupang\u2019s <a href=\"https:\/\/techcrunch.com\/2025\/12\/01\/koreas-coupang-says-data-breach-exposed-nearly-34m-customers-personal-information\/\" target=\"_blank\" rel=\"noreferrer noopener\">massive data breach in South Korea<\/a> has now become a geopolitical flashpoint as a growing number of the company\u2019s U.S. investors take legal action against the South Korean government.<\/p>\n\n<p class=\"wp-block-paragraph\">What began as a regulatory investigation into data security failures has expanded into a broader dispute over alleged unfair treatment of the U.S.-headquartered company.<\/p>\n\n<p class=\"wp-block-paragraph\">While Coupang \u2014 which operates in South Korea, Taiwan, and Japan \u2014 is often referred to as the \u201cAmazon of South Korea,&#8221; its worldwide headquarters are actually in Seattle, Washington.<\/p>\n\n<p class=\"wp-block-paragraph\">The company\u2019s investors are now seeking international arbitration under the U.S.-Korea Free Trade Agreement (FTA). On January 23, 2026, U.S. investment firms Greenoaks and Altimeter <a href=\"https:\/\/www.immigration.go.kr\/bbs\/moj\/183\/602757\/artclView.do\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">filed a notice<\/a> with South Korea\u2019s Ministry of Justice, saying they suffered losses from what they characterized as the government\u2019s discriminatory investigation into the data breach. They said they plan to pursue investor\u2013state dispute settlement (ISDS) arbitration under the U.S.-Korea FTA.<\/p>\n\n<p class=\"wp-block-paragraph\">South Korea\u2019s Ministry of Justice <a rel=\"nofollow\" href=\"https:\/\/moj.go.kr\/moj\/222\/subview.do?enc=Zm5jdDF8QEB8JTJGYmJzJTJGbW9qJTJGMTgzJTJGNjAzNDc2JTJGYXJ0Y2xWaWV3LmRvJTNGcGFzc3dvcmQlM0QlMjZyZ3NCZ25kZVN0ciUzRCUyNmJic0NsU2VxJTNEJTI2cmdzRW5kZGVTdHIlM0QlMjZpc1ZpZXdNaW5lJTNEZmFsc2UlMjZwYWdlJTNEMSUyNmJic09wZW5XcmRTZXElM0QlMjZzcmNoQ29sdW1uJTNEJTI2c3JjaFdyZCUzRCUyNg%3D%3D\">said<\/a> Thursday that three more investors, including Abrams Capital, Durable Capital Partners, and Foxhaven Asset Management have now joined the case. They are alleging the government acted unlawfully toward the e-commerce company.<\/p>\n\n<p class=\"wp-block-paragraph\">To recap the incident: In December, Coupang disclosed that nearly 34 million Korean customers\u2019 personal information had been leaked in a data breach that had been going on for more than five months. The breach involved customer names, email addresses, phone numbers, shipping addresses, and certain order histories,&nbsp;the company said.<\/p>\n\n<p class=\"wp-block-paragraph\">While other tech breaches in Korea resulted in less severe penalties, Coupang has faced extraordinary government pressure. The government reportedly threatened <a href=\"https:\/\/www.koreatimes.co.kr\/business\/companies\/20251201\/coupang-faces-potential-770-mil-fine-after-data-breach\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">massive fines<\/a>, <a href=\"https:\/\/www.koreatimes.co.kr\/business\/companies\/20251221\/coupang-faces-possible-business-suspension-after-massive-data-breach\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">suspension of operations<\/a>, and <a href=\"https:\/\/www.koreatimes.co.kr\/business\/companies\/20260112\/police-mull-overseas-travel-ban-on-coupang-chief-in-data-breach-investigation\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">travel bans<\/a> for executives while Coupang&#8217;s investors allege it also sought <a rel=\"nofollow\" href=\"https:\/\/en.sedaily.com\/society\/2025\/12\/31\/labor-minister-warns-officials-against-contact-with-ex\">to block public communication<\/a> and repeatedly misrepresented the scope of the breach.<\/p>\n<div class=\"wp-block-techcrunch-inline-cta\">\n\t<div class=\"inline-cta__wrapper\">\n\t\t<div class=\"inline-cta__logo\">\n\t\t\t<svg aria-hidden=\"true\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"41\" height=\"20\" fill=\"none\" viewBox=\"0 0 41 20\"><path fill=\"#fff\" d=\"M0 0v6.452h7.097V20h7.097V6.452h6.451V0zM27.742 13.548V6.452h-7.097V20h20v-6.452zM40.645 0H27.742v6.452h12.903z\"\/><\/svg>\t\t<\/div>\n\t\t<div class=\"inline-cta__flag\">Techcrunch event<\/div>\n\t\t<div class=\"inline-cta__content\">\n\t\t\t<div class=\"inline-cta__header-container\">\n\t\t\t\t<div class=\"inline-cta__header-container-desktop\">\n\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"inline-cta__header has-h-5-font-size\">Save up to $300 or 30% to TechCrunch Founder Summit<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"inline-cta__subheader\">1,000+<strong> founders<\/strong> and investors come together at <strong>TechCrunch Founder Summit 2026<\/strong> for a full day focused on growth, execution, and real-world scaling. Learn from founders and investors who have shaped the industry. Connect with peers navigating similar growth stages. Walk away with tactics you can apply immediately.<br><br>Offer ends March 13.<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"inline-cta__header-container-mobile\">\n\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"inline-cta__header has-h-5-font-size\">Save up to $300 or 30% to TechCrunch Founder Summit<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"inline-cta__subheader\">1,000+<strong> founders<\/strong> and investors come together at <strong>TechCrunch Founder Summit 2026<\/strong> for a full day focused on growth, execution, and real-world scaling. Learn from founders and investors who have shaped the industry. Connect with peers navigating similar growth stages. Walk away with tactics you can apply immediately<br><br>Offer ends March 13.<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"inline-cta__event-info\">\n\t\t\t\t\t\t\t\t\t<span class=\"inline-cta__location\">Boston, MA<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"inline-cta__separator\">|<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"inline-cta__date\">June 9, 2026<\/span>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"inline-cta__register-button\">\n\t\t\t\t\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a data-ctaText=\"REGISTER NOW\" data-destinationLink=\"https:\/\/techcrunch.com\/events\/techcrunch-founder-summit-2026\/?utm_source=tc&amp;utm_medium=ad&amp;utm_campaign=tcfoundersummit2026&amp;utm_content=seb&amp;promo=tc_inline_seb&amp;display=\" data-event=\"button\" class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/techcrunch.com\/events\/techcrunch-founder-summit-2026\/?utm_source=tc&amp;utm_medium=ad&amp;utm_campaign=tcfoundersummit2026&amp;utm_content=seb&amp;promo=tc_inline_seb&amp;display=\" target=\"_blank\" rel=\"noreferrer noopener\">REGISTER NOW<\/a><\/div>\n<\/div>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\n<p class=\"wp-block-paragraph\">Korea&#8217;s Personal Information Protection Commission (PIPC) said that more than 30 million Coupang accounts were exposed \u2014 but the facts point to just 3,000 affected accounts, according to Coupang\u2019s investors.<\/p>\n\n<p class=\"wp-block-paragraph\">In December, South Korea\u2019s government and the <a href=\"https:\/\/biz.chosun.com\/en\/en-it\/2025\/12\/17\/NXHCHEF2B5BWTB5WZ5UGYKYU4A\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">PIPC said<\/a> the Coupang breach was serious enough to justify higher fines. Under current law, penalties are capped at 3% of revenue, more than $800 million for Coupang, according to the U.S. investors, but some lawmakers have proposed raising the limit to 10% and applying it retroactively.<\/p>\n\n<p class=\"wp-block-paragraph\">Even if the new law passes, it wouldn\u2019t apply to Coupang, since the breach occurred before the rules changed. But a Democratic Party lawmaker in the country suggested imposing punitive fines, through either new legislation or a special parliamentary act, and PIPC backed the idea, <a href=\"https:\/\/www.newsis.com\/view\/NISX20251217_0003445328\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">per news reports<\/a>.  South Korean president Lee Jae Myung also <a href=\"https:\/\/v.daum.net\/v\/20260110090249624#:~:text=2025%EB%85%84%2012%EC%9B%94%2011%EC%9D%BC%2C%20%EA%B8%B0%ED%9A%8D%EC%9E%AC%EC%A0%95%EB%B6%80%20%EC%97%85%EB%AC%B4%EB%B3%B4%EA%B3%A0%EC%97%90%EC%84%9C%20%EC%9D%B4%EC%9E%AC%EB%AA%85%20%EB%8C%80%ED%86%B5%EB%A0%B9%EC%9D%B4,%EC%9C%A0%EC%B6%9C%EB%90%9C%20%EC%82%AC%EA%B1%B4%EC%9D%84%20%EB%91%90%EA%B3%A0%20%EA%B0%95%EA%B2%BD%20%EB%8C%80%EC%9D%91%EC%9D%84%20%EC%9A%94%EA%B5%AC%ED%95%9C%20%EA%B2%83%EC%9D%B4%EB%8B%A4.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">publicly<\/a> <a href=\"http:\/\/www.marketnews.co.kr\/news\/articleView.html?idxno=73489\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">called for heavy penalties<\/a>, suggesting the company had not faced sufficient consequences.<\/p>\n\n<p class=\"wp-block-paragraph\">Based on the <a href=\"https:\/\/www.moj.go.kr\/bbs\/moj\/439\/603008\/artclView.do\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">notice of intent filing<\/a> released by the investors\u2019 legal adviser, the investors argue that the South Korean government\u2019s actions constitute an \u201cunprecedented assault\u201d on Coupang. In the filing, they argue: \u00a0<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">The Government\u2019s unprecedented assault on a U.S. company to benefit its Korean and Chinese competitors is an egregious violation of the Treaty, principles of international law, and the historic partnership between Korea and the United States\u00a0\u2026 The Government\u2019s shocking conduct has left the U.S. investors with no choice. If the Government does not immediately cease its attacks against Coupang, fully restore the company\u2019s ability to operate its business, and permanently end its longstanding campaign of discrimination against the company, then the U.S. investors will be forced to seek billions of dollars in damages from Korea to protect their investments in Coupang and remedy the Government\u2019s ongoing Treaty violations, including attempted expropriation.<\/p>\n<\/blockquote>\n\n<p class=\"wp-block-paragraph\">The filing is a preliminary, pre-litigation step. South Korea\u2019s <a href=\"https:\/\/www.moj.go.kr\/bbs\/moj\/439\/603008\/artclView.do\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Ministry of Justice<\/a> is now reviewing the notice of intent, which kicks off <a href=\"https:\/\/cil.nus.edu.sg\/wp-content\/uploads\/2013\/11\/SIAA-Day3-AndreaMenaker-Pre-arbitration-Requirements.pdf#:~:text=notice%20of%20its%20intention%20to%20submit%20a%20claim%20to%20arbitration%20at%20least%2090&amp;text=%E2%80%A2%20%E2%80%9CRequest%20for%20consultations%E2%80%9D%20triggers%206%2Dmonth%20period.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">a mandatory 90-day consultation period<\/a> before formal arbitration can begin.<\/p>\n\n<p class=\"wp-block-paragraph\">Coupang, Abrams Capital, and Foxhaven Asset Management did not respond to TechCrunch\u2019s request for comment. Durable Capital Partners could not be reached.<\/p>\n\n<p class=\"wp-block-paragraph\">According to the investors&#8217; filing, South Korea\u2019s handling of data breaches has been inconsistent, specifically citing other recent data breaches in South Korea, including KakaoPay, <a href=\"https:\/\/techcrunch.com\/2025\/05\/08\/a-timeline-of-south-korean-telco-giant-skts-data-breach\/\" target=\"_blank\" rel=\"noreferrer noopener\">SK Telecom<\/a>, Upbit, and Alibaba\u2019s AliExpress.<\/p>\n\n<p class=\"wp-block-paragraph\">KakaoPay reportedly transferred 54 billion customer records to Alipay Singapore, yet faced <a href=\"https:\/\/www.koreatimes.co.kr\/economy\/20250409\/fss-fines-kakao-pay-10-mil-for-illegally-transferring-customer-data-to-alipay\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">only a $10 million fine<\/a> and a CEO warning, while <a href=\"https:\/\/en.yna.co.kr\/view\/AEN20260119009200315\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">SK Telecom was fined $91 million<\/a> after a massive SIM card breach. <a href=\"https:\/\/www.dlnews.com\/articles\/markets\/south-korean-police-probe-30-million-upbit-hack\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Upbit<\/a> and <a href=\"https:\/\/www.kedglobal.com\/e-commerce\/newsView\/ked202407250013\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">AliExpress<\/a> also saw minimal government action. The investors say these examples underscore the stark contrast with the government\u2019s response to Coupang.<\/p>\n\n<p class=\"wp-block-paragraph\">South Korea\u2019s Ministry of Science and ICT said Wednesday that the Coupang data breach was carried out by a former employee who had worked on the company\u2019s authentication systems and was aware of vulnerabilities in both the authentication framework and key management system. <\/p>\n\n<p class=\"wp-block-paragraph\">The Ministry alleges that Coupang failed to report the breach to the Korea Internet &amp; Security Agency (KISA) within 24 hours and did not fully implement a November 2025 data preservation order, leading to the deletion of key web and app access logs. The ministry has referred the matter to investigators and ordered Coupang to submit a prevention plan by February 2026, with compliance monitored through July.<\/p>\n\n<p class=\"wp-block-paragraph\">Coupang <a href=\"https:\/\/www.aboutcoupang.com\/English\/news\/news-details\/2026\/response-to-the-jit-report-regarding-the-november-2025-data-incident\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">released a statement<\/a>, saying that the employee, a Chinese national, accessed data from over 33 million accounts but retained only about 3,000 before deleting it, and that no sensitive info such as payment data, passwords, or government IDs was accessed.<\/p>\n\n<p class=\"wp-block-paragraph\">Coupang also replaced its CEO, Park Dae-jun, with Harold Rogers, its U.S. parent\u2019s top lawyer, <a href=\"https:\/\/techcrunch.com\/2025\/12\/10\/ceo-of-south-korean-retail-giant-coupang-resigns-after-massive-data-breach\/\" target=\"_blank\" rel=\"noreferrer noopener\">in December<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">Adam Farrar, senior associate at CSIS and senior geoeconomics analyst for APAC at Bloomberg, said on <a href=\"https:\/\/www.youtube.com\/watch?v=YV8JR9df8U8\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Tuesday\u2019s Impossible State podcast<\/a> that what began as a major data breach involving Coupang has grown into a broader issue between the United States and South Korea.<\/p>\n\n<p class=\"wp-block-paragraph\">Farrar said that the case is amplifying broader U.S. claims of unfair treatment toward American technology firms, raising trade and tariff risks for South Korea as <a href=\"https:\/\/www.foxbusiness.com\/fox-news-world\/congress-targets-south-korean-regulators-over-discriminatory-treatment-us-tech-companies\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">the U.S. Congress<\/a> becomes increasingly engaged.<\/p>\n\n<p class=\"wp-block-paragraph\">\u201cThe massive data breach [by Coupang] led to a series of investigations in the National Assembly and some very combative back and forth with Coupang and a series of executives over the past several months,\u201d Farrar said in the podcast. \u201cThe additional dynamic here is that Coupang, while driving almost all of its earnings from Korea, is now a U.S.-based company that adds to the dynamic on both sides, impacting how they\u2019re perceived and seen.\u201d<\/p>\n\n<p class=\"wp-block-paragraph\">The issue extends beyond Coupang, raising broader questions about whether South Korea is unfairly targeting U.S. companies, Farrar continued. <\/p>\n\n<p class=\"wp-block-paragraph\">Critics point to digital policies they say favor domestic firms, including network usage fees on content providers like <a href=\"https:\/\/techcrunch.com\/2021\/09\/30\/south-korean-isp-sk-broadband-counterclaims-against-netflix-for-bandwidth-usage-fees\/\" target=\"_blank\" rel=\"noreferrer noopener\">Netflix<\/a>, <a href=\"https:\/\/techcrunch.com\/2023\/10\/06\/google-apple-face-fines-in-south-korea-for-breaching-in-app-billing-rules\/\" target=\"_blank\" rel=\"noreferrer noopener\">Apple\u2019s App Store and Google Play<\/a> payment rules, and data localization requirements that limit services like <a href=\"https:\/\/techcrunch.com\/2025\/10\/15\/seoul-weighs-approval-for-google-apple-high-resolution-map-requests\/\" target=\"_blank\" rel=\"noreferrer noopener\">Google Maps<\/a> on national security grounds.<\/p>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Coupang\u2019s massive data breach has sparked U.S. investor lawsuits against the South Korean government over alleged discrimination.<\/p>\n","protected":false},"author":133574478,"featured_media":3074925,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"tc-featured-article":false,"tc-header-option":"","tc-breaking-news":false,"tc-article-brief":false,"carmot_uuid":"","apple_news_api_created_at":"2026-02-12T16:56:38Z","apple_news_api_id":"1349c3e4-da6c-4614-95f3-2caa4aae853d","apple_news_api_modified_at":"2026-02-12T17:36:15Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAABg==","apple_news_api_share_url":"https:\/\/apple.news\/AE0nD5NpsRhSV8yyqSq6FPQ","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":[],"apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"tc_subtitle":"","tc_featured_image_disabled":false,"tc_exclude_from_rss_feed":false,"tc_exclude_from_content_rivers":false,"footnotes":""},"categories":[577065682,21587494],"tags":[51876189,67372],"tc_region":[577037497,577037507,577037509,577183601],"tc_event":[],"tc_storyline_tax":[],"coauthors":[576910313],"class_list":["post-3092220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-government-policy","category-security","tag-coupang","tag-data-breach","tc_region-asia","tc_region-north-america","tc_region-united-states","tc_region-south-korea"],"apple_news_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.1 (Yoast SEO v25.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>More US investors sue South Korean government over handling of Coupang data breach | TechCrunch<\/title>\n<meta name=\"description\" content=\"Coupang\u2019s massive data breach has sparked U.S. investor lawsuits against the South Korean government over alleged discrimination.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/techcrunch.com\/2026\/02\/12\/more-u-s-investors-sue-south-korean-government-over-handling-of-coupang-data-breach\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"More US investors sue South Korean government over handling of Coupang data breach | TechCrunch\" \/>\n<meta property=\"og:description\" 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