What: Louis Vuitton's South Korean unit confirms data breach affecting customer contact information, joining other LVMH brands under investigation for similar security incidents.

Why it is important: This security breach represents part of a broader pattern of cyber attacks targeting luxury retailers, demonstrating the sector's need to strengthen digital infrastructure protection.

Louis Vuitton Korea has disclosed a data breach that occurred in June, where an unauthorized third party temporarily accessed their systems and obtained customer contact information. The company discovered the breach on Wednesday and promptly notified relevant government authorities. While customer financial information remained secure, the incident has raised concerns about data protection in the luxury retail sector. The breach follows similar incidents at Christian Dior Couture and Tiffany, both LVMH-owned brands, which are currently under investigation by South Korea's Personal Information Protection Commission for data leaks reported earlier this year. Louis Vuitton has implemented measures to contain the breach and enhance system security, highlighting the growing importance of cybersecurity in luxury retail operations.

IADS Notes: This breach follows a concerning pattern of cyber attacks targeting luxury retailers in 2025. In May 2025, Dior experienced a significant breach of its Chinese customer database, while June 2025 saw Cartier disclosing a similar incident. The retail sector has witnessed a dramatic increase in cyber threats, with ransomware now accounting for 30% of security incidents and average losses reaching £1.4 million per attack. The vulnerability of luxury brands is particularly noteworthy, as demonstrated by the April 2025 data showing that 41% of breaches occur through third-party providers.

Louis Vuitton in Korea says customer data leaked in systems breach