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Key Findings A 16TB unsecured MongoDB database exposed about 4.3 billion professional records, mainly LinkedIn-style data The database was discovered by researchers Bob Diachenko and nexos.ai on November 23, 2025 and secured two days later The database contained 9 collections with at least 3 exposing nearly 2 billion personal records including names, emails, phone numbers, LinkedIn links, job roles, employers, work history, education, locations, skills, languages, and social

Key Findings Coupang, a major e-commerce company in South Korea, has suffered a massive data breach affecting over 33.7 million accounts - more than half of the country's population. The breach was initially detected on November 18, 2025, when suspicious activity was observed on around 4,500 accounts. Further investigation revealed that the breach actually dated back to late June 2025 and had compromised the personal information of nearly the entire Coupang user base. Exposed