US-based e-commerce giant Coupang disclosed that approximately 200,000 Taiwanese accounts were compromised in a recent data breach impacting around 33 million accounts. The breach, which occurred in November 2025, prompted Coupang to engage cybersecurity firms Mandiant and Palo Alto Networks for a thorough forensic investigation. The company attributed the breach to a former employee’s actions and emphasized its pursuit of legal recourse against the perpetrator.
Coupang’s investigation revealed that the unauthorized access by the ex-employee extended to about 200,000 accounts in Taiwan. Despite the breach, Coupang assured that no highly sensitive data was breached and clarified that there was no indication of the compromised customer data being viewed, shared, or transferred to any third party. The company stated that there has been no evidence of customer data misuse linked to this incident so far.
Following a joint public-private inquiry, it was confirmed that over 33.6 million accounts were impacted by the data breach at Coupang’s South Korean division. Additionally, the investigation highlighted that the delivery section of Coupang’s platform had been accessed approximately 148 million times, with exposed information including shared entrance door passwords. Coupang faced criticism for initially downplaying the breach scale, with its initial claim of only 3,300 leaked accounts drawing public ire and skepticism.
