Coupang (CPNG) Stock Tumbles After Record Data Breach – December 2025 Outlook for Investors
Coupang shares fell about 4–5% to $26.90 in New York on December 1 after the company disclosed a data breach affecting 33.7 million customer accounts, nearly its entire South Korean user base. The breach, which began in June and went undetected for months, exposed names, contact details, and order histories. Police are investigating possible involvement by a former Chinese employee.