According to Security NEXT, Fujikura announced that on July 2, 2024, it discovered unauthorized external access via a network maintenance VPN managed by NTT Communications [1]. Forensics uncovered traces of external access and data exfiltration across multiple servers at its Sakura Works, potentially exposing personal data of customer contacts as well as group employees and their family members [1]. Potentially affected data includes names, addresses, phone numbers, email addresses, and certain HR or bank account details, with the report citing VPN management deficiencies and vulnerability exploitation [1].
Fujikura Compromised via Maintenance Contractor VPN, Server Data Exfiltration Discovered
1 min read
- Disclosed
- Dec 26, 2024
- Published
- Nov 10, 2026
- Last updated
- Nov 7, 2026
- CVSS basis
- Our assessment
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30-second summary
What happened
Who is affected
Industries mainly affected: Manufacturing
What to do nowOur advice
Potentially affected data includes names, addresses, phone numbers, email addresses, and certain HR or bank account details, with the report citing VPN management deficiencies and vulnerability exploitation [1].
Timeline
- Security NEXT publishes report (date only; timestamp is a placeholder)[1]
Technical details
Verified Source Summary
Fujikura announced that on July 2, 2024, it discovered unauthorized external access via a network maintenance managed by NTT Communications [1].
Forensics uncovered traces of external access and across multiple servers at its Sakura Works, potentially exposing personal data of customer contacts as well as group employees and their family members [1].
Potentially affected data includes names, addresses, phone numbers, email addresses, and certain HR or bank account details, with the report citing VPN management deficiencies and vulnerability exploitation [1].
References
Media1
- [1]
“光ファイバーや電線、ケーブルの製造などを手がけるフジクラは、保守委託先のVPN機器経由で不正アクセスを受け、サーバより情報が流出したことを明らかにした。”
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