Business SaaS and e-mail
IIJ Secure MX Service
IIJ Secure MX Service (run by Internet Initiative Japan Inc.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2025-04-15.
About the service
- Website
- https://www.iij.ad.jp/biz/smx/
- Run by
- Internet Initiative Japan Inc.
- Category
- Business SaaS and e-mail
- For
- Businesses
Incident history
Disclosed 2025-04-15Updated 2026-10-23Tokyo[Contained][Severity: Critical][Breached][Critical]
IIJ: data leakage from IIJ Secure MX Service[Web app exploit][Data leak]Leaked 4.1MOrganizations 1
Other incidents of the operator (1)
Disclosed 2025-11-11Updated 2026-10-23Tokyo[Contained][Severity: Moderate]
National Diet Library: development environment intrusion; suspected leak ruled out[Intrusion]Leaked 40.4KOrganizations 2