Coupang Faces Revenue Decline After Major Data Breach Affecting 34 Million Accounts

• •Coupang's data breach affected nearly 34 million accounts, two-thirds of South Korea's population.
• •The breach was caused by a former employee accessing personal information undetected for months.
• •Coupang anticipates a slowdown in revenue growth due to decreased consumer spending.

Coupang Inc. has announced a slowdown in revenue growth for 2026 following a significant data breach that impacted nearly 34 million accounts, which is two-thirds of South Korea's population. The breach was caused by a former employee who improperly accessed personal information, remaining undetected for several months. This incident has led to increased scrutiny from South Korean regulators and has raised concerns about consumer spending on the platform. The company's March-quarter loss was larger than expected, reflecting the breach's impact on consumer confidence and spending. The breach represents one of the largest data compromises in South Korean history, highlighting vulnerabilities in data access controls within the company.