Aflac Japan Data Breach Hits 4.4 Million Customers

Aflac Japan faces a data breach affecting 4.4M customers, compromising personal and banking details. US operations remain secure.

By Content Team

Jul 2, 2026

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Aflac has disclosed a significant data breach at its Japanese subsidiary, affecting nearly 4.4 million customers. Hackers accessed Aflac Japan's systems between June 15 and June 25, stealing policy details, personal information, and bank account data — including premium payment records for around 230,000 customers.

The company filed with the SEC on June 30, confirming US operations were unaffected. Some customer portal services remain offline, though claims and payments continue via call centers. Aflac Japan has notified authorities and says no misuse has been confirmed yet.

This marks the third breach targeting Aflac Japan since 2023.

Source: Infosecurity Magazine

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