Présentation
205,208 addresses sent October 8-29; no names or addresses. 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.
Chronologie
- Survenue
- Découverte
- Divulgation
Réponse de l’organisation
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
Que faire ?
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
- 弊社委託先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メールアドレス流出についてのお詫び住友不動産株式会社 · 2026-11-09