Banking and investing
Insurance premium deduction certificate service
Insurance premium deduction certificate service (run by TOPPAN Inc.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2026-09-29.
About the service
- Website
- https://insurance-p-kojo.jp/akstnm/
- Run by
- Category
- Banking and investing
- For
- People
Incident history
Disclosed 2026-09-29Updated 2026-09-30Tokyo[Resolved][Severity: Critical][Breached][Critical]
TOPPAN: Sompo Japan policyholder data sent to another insurer[Misdelivery][Data leak]Leaked 177.4KOrganizations 2