Incidents on Mar 31, 2026

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Incidents on Mar 31, 2026
Date	Target	Summary	Classification	Source links
Mar 31, 2026 LEAK-086	Mynavi Corporation	B 74,224 recordsUnauthorized access to a cloud service the company uses may have exposed personal information: 74,224 general users, 21,609 corporate contacts and 15,672 employees. An anomaly was detected in December 2025.	Unauthorized access & data leakPossibleOfficial statement	mynavi.jp itmedia.co.jp