已確認

Tochigi Bank: about 1,000 customer email addresses leaked via Arara mail-server breach

Tochigi Bank announced on November 2 that part of its email-delivery service ran on Arara servers that were breached, leaking some customer email addresses, and gave the count in a November 3 second report.

最後更新: 2026-11-09

此內容以 English 顯示。

概述

Second report: "about 1,000" (count blank) from mail sent October 8-29. No names, addresses, account numbers or PINs confirmed leaked. Per the company, this stems from unauthorised access to the Arara email-delivery platform (recorded separately); this figure is a subset of the vendor scope and must not be added to it.

時間軸

不明發生
不明發現
2026-11-02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

当行が利用するメール配信サービスへの不正アクセスによるお客さまメールアドレス流出について（第2報）株式会社栃木銀行 · 2026-11-09
当行が利用するメール配信サービスへの不正アクセスによるお客さまメールアドレス流出について株式会社栃木銀行 · 2026-11-09