Investigating

Yamaguchi University: staff mailbox compromise may have exposed 967 contact records

Possible data leak: A staff account was phished; on Aug 26, 2026 spoofed mail went to 463 of 967 address-book contacts. Name/email contacts appear leaked; disclosed Oct 6.

Last updated: 2026-11-09

Overview

967 contact records.

Timeline

  1. Occurred
  2. Discovered
  3. Disclosed

Organization response

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

What you can do

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.

Sources

  1. 本学教職員になりすました不審メール発信に関するお詫びとご報告について国立大学法人山口大学 · 2026-11-09

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