Korea’s Coupang says data breach exposed nearly 34M customers’ personal information

South Korean e-commerce level Coupang implicit the play said astir 34 cardinal Korean customers’ idiosyncratic accusation had been leaked successful a information breach that had been ongoing for much than 5 months.

The institution said it archetypal detected the unauthorized vulnerability of 4,500 idiosyncratic accounts connected November 18, but a consequent probe revealed that the breach had really compromised astir 33.7 cardinal lawsuit accounts successful South Korea.

The breach affected customers’ names, email addresses, telephone numbers, shipping addresses and definite bid histories, per Coupang. More delicate information similar outgo information, recognition paper numbers, and login credentials was not compromised and remains secure, the institution said.

Coupang said it has reported the incidental to the Korea Internet Security Agency (KISA), the Personal Information Protection Commission (PIPC), and the National Police Agency.

One of South Korea’s biggest e-commerce platforms, Coupang besides offers a quick-commerce work called “Rocket Delivery” successful the country, and besides operates its marketplace successful Japan and Taiwan. A Coupang spokesperson told TechCrunch that the probe has recovered nary grounds that user information from Coupang Taiwan oregon Rocket Now was affected successful the information breach.

“According to the probe truthful far, it is believed that unauthorized entree to idiosyncratic accusation began connected June 24, 2025, via overseas servers,” the institution said. “Coupang blocked the unauthorized entree route, strengthened interior monitoring, and retained experts from a starring autarkic information firm.”

Police person reportedly identified astatine slightest 1 suspect, a erstwhile Chinese Coupang worker present abroad, aft launching an probe pursuing a November 18 complaint.

This is the latest successful a drawstring of cybersecurity incidents successful South Korea this year. Coupang itself has suffered respective information breaches that person exposed customer and delivery drivers’ information successful erstwhile years. Past incidents included leaks betwixt 2020 and 2021, and astir precocious successful December 2023, erstwhile its seller absorption strategy compromised the idiosyncratic accusation of much than 22,000 customers.