Breaches and incidentsBriefChecked against a primary source
Japan Digital Agency (Government Solution Service): VPN flaw exposes about 246,000 personal records
The Digital Agency said a third party breached the shared government IT platform GSS “by exploiting a vulnerability in a network connection device (VPN)”.
- Disclosed
What happened
- The Digital Agency said a third party breached the shared government IT platform GSS “by exploiting a vulnerability in a network connection device (VPN)”. About 246,000 records may have leaked: about 189,000 relate to staff of GSS user organisations and public officers, about 57,000 to businesses and individuals; mostly names, email addresses and phone numbers. No My Number, financial or pension data.
- Root cause: VPN device vulnerability (vendor and CVE not named by the agency; Security Affairs reports it was not a zero-day), followed by use of a maintenance and operation account. Mass file access was spotted on 25 Jun; the breach was confirmed on 9 Jul; public disclosure came on 11 Sep.
- Attacker: not identified.
- Response: account suspended, device’s external communication cut, VPN patch applied, vulnerability-management review; affected people being notified.
Sources
- https://www.digital.go.jp/en/news/2026-0911-01
- https://bleepingcomputer.com/news/security/japans-digital-agency-says-vpn-flaw-exposed-246-000-personnel-records
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