Fire and Disaster Management Agency: intrusion into the wartime safety information system, which is stopped
The system for sharing residents' safety information in an armed attack was accessed without authorization, as maintainer Fujisoft found. No personal data leak is confirmed.
Disclosed
2026-11-05
Organizations involved
2
Leaked or at risk
Unknown
Downtime
Unknown
What happened
On 5 November Fire and Disaster Management Agency disclosed that a third party had accessed Safety Information System without authorization, as reported by FUJISOFT INCORPORATED, which runs and maintains it. According to the Asahi Shimbun the access took place from 21 to 30 October; the National Cybersecurity Office noticed it, and the agency confirmed it with Fujisoft on 4 November. [1] [2] [3]
The system is used in an armed attack or similar emergency to share residents' safety information gathered at shelters and hospitals between the state and local governments, and to answer enquiries from families. [3] [4]
Impact and response
The agency said no personal data leak has been confirmed, and Fujisoft said it had confirmed there was no leak. According to NHK, no personal data appears to have been on the system at the time. [1] [2] [4]
The service is stopped and cut off from outside access while the scope is examined. Fujisoft is investigating the cause, and according to the Asahi Shimbun no restoration date is in sight. [1] [3]
Timeline
- Started 2026-10-21
- Detected 2026-11-04
- Disclosed 2026-11-05
- 15 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Service outage]
- Entry point
- Unknown
Data exposed or at risk
–
Services hit
Organizations involved
[Breached][Moderate]Kanagawa, Yokohama, Naka-kuInformation and communications
FUJISOFT INCORPORATEDOperates and maintains FDMA’s safety information system. It detected the intrusion into that system and cut external access; it confirmed there was no personal data leak.
[Breached][Moderate]Tokyo, ChiyodaNational government
Fire and Disaster Management Agency
Sources
- [1][Official]武力攻撃事態等における安否情報収集・提供システムへの不正アクセスについてFire and Disaster Management Agency · 2026-11-05
- [2][Official]当社が運用保守業務を受託しているシステムへの不正アクセスについてFujisoft · 2026-11-05
- [3][News]有事の安否確認に使う消防庁システムに不正アクセス 漏洩確認されずAsahi Shimbun · 2026-11-05 19:51
- [4][News]総務省消防庁 「安否情報システム」への不正アクセス確認NHK · 2026-11-05 20:20