Lotte Card Breach Exposes Data of 3M South Korean Customers

(MENAFN) Lotte Card, South Korea’s fifth-largest credit card provider, confirmed on Thursday that personal data belonging to approximately 3 million customers was compromised in a cyberattack that occurred last month, as reported by South Korean media.

The company revealed that hackers infiltrated its systems, stealing roughly 200 gigabytes of sensitive data. This data included personal identification numbers, internal IDs, and customer contact details. Despite the breach, Lotte Card reported that there have been no known instances of misuse of the stolen information thus far.

The attack also exposed critical financial details, affecting about 280,000 customers. This included credit card numbers, verification codes, and expiration dates, sparking concerns over the potential for fraud.

In response to the breach, Lotte Card’s CEO, Cho Jwa-jin, issued a formal apology and committed to fully compensating customers for any damages incurred. He added that the breach took place between July 22 and August 27, during routine online settlement processes.

This breach comes amid a string of high-profile cybersecurity incidents in South Korea. In July, another data breach targeted a luxury brand, while the government imposed a fine on a telecommunications firm for a separate security lapse.

Earlier this year, Dior apologized for a breach that took place in January, while Tiffany & Co. reported a data leak in April. Additionally, in April, SK Telecom, South Korea’s largest telecom provider, disclosed a massive breach impacting the personal data of over 20 million customers—one of the most significant cyberattacks the nation has experienced.

MENAFN21092025000045017169ID1110089175