Company
Nichii Gakkan Co., Ltd.
Nichii Gakkan Co., Ltd. (Chiyoda, Tokyo; Medical care and welfare) appears in 2 related cybersecurity incidents. The latest was disclosed on 2026-10-02.
Profile
- Industry/type
- Medical care and welfare
- Location
- Tokyo, Chiyoda
- Website
- https://www.nichiigakkan.co.jp/
Public figures
Revenue¥273.8BNon-consolidated2026-03-31
Nichii Gakkan: 計算書類（2026年3月期）Capital¥100MNon-consolidated2026-03-31
Nichii Gakkan: 計算書類（2026年3月期）
Incident history
Disclosed 2026-10-02Updated 2026-10-22Tokyo[Resolved][Severity: Major][Breached][Major]
Nichii Gakkan: backup file on the care services site downloadable without authentication[Misconfiguration][Data leak]Leaked 583Organizations 1Disclosed 2024-08-16Updated 2026-10-23Tokyo[Resolved][Severity: Moderate][Breached][Moderate]
Nichii: ransomware on group PCs encrypts about 26,000 files; no trace of a leak[Ransomware]Organizations 2