调查中

Yamagata Prefecture: about 26,800 entrusted records may have been exposed via YCC ransomware

Possible data leak: After the YCC file-server attack, the prefecture disclosed on April 17 that related data known as of April 16 had been stored on that server. No impact confirmed on live operational systems.

最后更新: 2026-11-09

此内容以 English 显示。

概述

Notice uses “about 26,800” and approximate subset figures so count blank. Health admin, nurse filings and hospital lists among categories.

时间线

未知发生
2026-04-02发现
2026-04-17披露

组织应对措施

Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.

用户应对建议

Be wary of emails, SMS or calls impersonating the organisation; do not open links or attachments or enter passwords or card details. Change reused passwords on other services.

信息来源

県委託事業者へのサイバー攻撃について（プレスリリース資料）山形県 · 2026-11-09
県委託事業者へのサイバー攻撃について山形県 · 2026-11-09