Key facts
- Aflac Life Insurance Japan experienced a data breach.
- The breach affected approximately 4.38 million customers.
- Personal information and some bank account details were compromised.
- The incident was discovered on June 25, 2026.
- The breach is limited to systems in Japan.
- U.S. business systems were unaffected.
Aflac Life Insurance Japan has announced a data breach that has compromised the personal information and some bank account details of around 4.38 million customers. The company discovered the incident on June 25, 2026. The breach is specifically limited to systems operating within Japan. Aflac has confirmed that its business systems in the United States were not affected by this security incident.