Confirmed

NTT Townpage: 142,126 newsletter email addresses leaked via Arara repica

NTT Townpage was told that some newsletter addresses leaked in the breach of Arara's repica, used by its contractor.

Last updated: 2026-11-09

Overview

142,126 recipient addresses October 8-31. This stems from the Arara email-platform intrusion (recorded separately); the figure is a subset of the vendor scope and must not be added to it.

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. 当社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情報流出についてNTTタウンページ株式会社 · 2026-11-09

Related information

arara-message-platform-breach-2026

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