已確認

BIGLOBE: email addresses of 5,016,432 people leaked via KDDI mail platform breach

BIGLOBE announced on June 23 the intrusion into the KDDI mail system behind BIGLOBE Mail, and fixed the leaked count on July 6.

最後更新: 2026-11-09

此內容以 English 顯示。

概述

BIGLOBE mail addresses and IDs of 5,016,432 people leaked, including passwords of 4,631,775 (a subset). This stems from the intrusion into KDDI's mail platform for ISPs (recorded separately); the figure is a subset of KDDI's total and must not be added to it.

時間軸

不明發生
不明發現
2026-06-23公布

組織應對措施

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

使用者應對建議

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.

資訊來源

「BIGLOBEメール」に対する不正アクセスの発生についてビッグローブ株式会社 · 2026-11-09
「BIGLOBEメール」に対する不正アクセスについてのお詫びとご報告ビッグローブ株式会社 · 2026-11-09