Coupang Accused of Covering Up Customer Data Breach in New Shareholder Lawsuit

Coupang sold investors a story about trust, growth, and world class technology. A fast growing ecommerce giant. Strong systems. Customer data safe.

But behind the scenes, something was already very wrong.

According to a new securities lawsuit, a former employee quietly kept access to Coupang's internal systems. For months. Undetected. From August 2025 through November, executives kept filing reports saying cyber risks were under control.

Then on November 18, Coupang finally discovered the breach. More than 33 million customer records exposed. Names. Emails. Delivery addresses. Nearly its entire user base.

Investors were not told right away.

The truth started leaking out at the end of November through media reports. Regulators stepped in. Police raided offices. And the CEO of Coupang's Korean unit resigned.

The stock slid again and again. Confidence collapsed. Now, investors say they were kept in the dark. And more shareholders are joining the lawsuit.