Overview
No published count (count blank). Possible name, birth date, address, phone, property, workplace and emergency-contact data. No card fields stated. Victim-side record of the contractor incident.
Timeline
- Occurred
- Discovered
- 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
- 賃貸管理業務委託先におけるランサムウェア攻撃に伴う個人情報の漏えいに関するお詫びとお知らせ株式会社セゾンファンデックス · 2026-11-09
- 【更新】賃貸管理業務委託先におけるランサムウェア攻撃に伴う個人情報の漏えいに関するお詫びとお知らせ株式会社セゾンファンデックス · 2026-11-09