Hackers Steal Data of 4.38 Million Aflac Japan Customers
Hackers Steal Data of 4.38 Million Aflac Japan Customers
Publish Date: 2026-06-30 12:00:00
Source Domain: securityaffairs.com
Hackers Steal Data of 4.38 Million Aflac Japan Customers
Pierluigi Paganini
June 30, 2026
Hackers stole data from 4.38 million Aflac Japan customers after accessing its systems for 10 days before the breach was detected.
Aflac Japan disclosed that hackers stole the personal information of 4.38 million customers and agents after gaining access to its systems between June 15 and June 25. Attackers stole data from the company policyholder portal. The exposed information includes names, addresses, phone numbers, dates of birth, gender, security details, and insurance account information. The type of exposed data varies by customer.
The company said it quickly contained the breach by suspending affected systems. The incident is limited to Aflac Japan and did not impact U.S. operations. Several customer services remain unavailable while the company continues recovery efforts.
“On June 30, 2026, Aflac Life Insurance Japan Ltd. (“Aflac Japan”), a wholly owned subsidiary of Aflac Incorporated, a Georgia corporation (the “Company”), issued a press release announcing that, on June 25, 2026, Aflac Japan discovered an unauthorized third-party had unlawfully accessed certain of Aflac Japan’s systems between June 15, 2026 and June 25, 2026.” reads the FORM 8-K filed with SEC.
The company is investigating the incident with the help of third-party cybersecurity experts.
“Although the investigation remains ongoing, Aflac Japan has determined that certain impacted files contain policy and coverage details, personal information, and bank account information.” continues the report. “Aflac Japan has notified the Japan Financial Services Agency and other relevant authorities, and intends to provide appropriate notifications to individuals affected by this incident.”
The company pointed out that the incident only impacted Japanese systems. The company said its U.S. systems were…
