Company
Classi Corp.
Classi Corp. (Shinjuku, Tokyo; Education and learning support) appears in 1 related cybersecurity incident. The latest was disclosed on 2020-04-13.
Profile
- Industry/type
- Education and learning support
- Location
- Tokyo, Shinjuku
- Website
- https://classi.jp/
- Registry closed
- 2026-05-13 Dissolved by merger
- Succeeded by
- Benesse Corporation
Public figures
–
Incident history
Disclosed 2020-04-13Updated 2021-05-19 08:00Tokyo[Resolved][Severity: Critical][Breached][Critical]
Classi: attackers used credentials phished from a developer to break into the school platform and leak the IDs and encrypted passwords of all 1.22 million users[Phishing][Credential abuse][Data leak][Service outage]Leaked 1.2MOrganizations 1