Hackers Steal Data of 4.38 Million Aflac Japan Customers

Aflac Japan detected unauthorized access to its customer portal between June 15–25, 2026, resulting in the theft of personal, policy, and some bank account information for about 4.38 million customers and agents; the company contained affected systems, engaged external cybersecurity experts, notified regulators, and is notifying impacted individuals while confirming U.S. operations were not affected.