Data breach affecting 33.7 million customer accounts on South Korea's leading e-commerce platform Coupang. Attackers accessed customer data via overseas servers for nearly five months (June 24 to November 8). Unusual access detected on November 6 at 6:38 PM KST but breach not fully identified until November 18 at 10:52 PM. Exposed data included user names, phone numbers, email addresses, delivery address books, and purchase details. A former Coupang employee identified as prime suspect who retained access keys post-resignation. The leaked information was not subject to mandatory encryption under Korean law.