青森市（公民連携ポータルサイト）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- October 19, 2026
- Severity
- AFinancial and HR records — information that easily translates into monetary damage.
- Scale
- 11 records
- Main impact
- 青森市 disclosed that information for 11 proposals submitted to the public–private partnership portal site may have been leaked due to unauthorized access to Studio, and has changed the submission method from the portal to direct submissions to the responsible department until safety can be confirmed.
- Information involved
- Email addressPhone numberHome addressFull name
- Cause / key point
- Cause is under investigation.
- Industry
- Government & municipal
- Listing / capital
- Government / public body
Portal site operated by a local government
- Last updated
- October 20, 2026
Is this incident worth paying attention to?
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Attack method classification: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)
Read the Unauthorized access (method undisclosed) guide and national trends →