South Korea says Coupang must address security loopholes in data breach probe

South Korea has launched a major cybersecurity probe after a massive data breach exposed the personal details of 33.7 million Coupang users, making it one of the country’s largest online security incidents. On February 10, 2026, regulators said the e-commerce giant must urgently fix serious security loopholes that allowed unauthorized access for several months. The breach, which ran from April to November 2025, involved stolen internal credentials used to bypass login systems.