Cool Japan Fund: server intrusion
The fund confirmed unauthorized server access on May 1 and restricted external access. It reported the incident to police, the privacy commission and the economy ministry, and announced an expert investigation into cause and scope. The initial notice did not identify affected data or publish a count. The August 28 final report identified network-device entry and possible exposure of 25 shareholder-related, about 1,080 investee-related and about 100 officer/employee records, including names, addresses, contacts, HR information and health-check results. Definitive exfiltration evidence and secondary harm were unconfirmed.
Disclosed
2025-05-12
Organizations involved
1
Leaked or at risk
1.1K
1,080
Downtime
Unknown
Timeline
- Detected 2025-05-01
- Disclosed 2025-05-12
- 11 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak]
- Entry point
- Unknown
Data exposed or at risk
Organizations involved
[Breached][Critical]Tokyo, MinatoFinance and insurance
Cool Japan Fund Inc.
Sources
- [1][Official]当機構サーバへの不正アクセスについてのお知らせとお詫びCool Japan Fund Inc. · 2025-05-12
- [2][Official]Notice Regarding Unauthorized Access to Our Server (Final Report)Cool Japan Fund · 2025-08-28