Media and books
GRUTTO PLUS
GRUTTO PLUS (run by Seibu Railway Co., Ltd.) was hit in 1 recorded cybersecurity incident. The latest was disclosed on 2020-04-14.
About the service
- Website
- https://grutto-plus.com/
- Run by
- Seibu Railway Co., Ltd.
- Category
- Media and books
- For
- People
Incident history
Disclosed 2020-04-14Updated 2021-04-02 08:00Tokyo[Resolved][Severity: Major][Breached][Major]
Seibu Railway: it detected unauthorized access to its line information site GRUTTO PLUS, took the site offline, and reopened it about a year later with stronger security[Intrusion][Service outage]Organizations 1
Other incidents of the operator (1)
Disclosed 2026-09-02Updated 2026-10-23Tokyo[Resolved][Severity: Critical]
Seibu Railway: 52 Seats of Happiness booking data viewable from outside[Misconfiguration][Data leak]Leaked 500Organizations 1