Investigating

Mobility Platform: MaaS Car member data may have leaked via Nippon Telenet ransomware at a subcontractor

After Nippon Telenet (subcontractor of UPR) was attacked on March 9, 2026, Mobility Platform was told on April 13 that MaaS Car-related data may have leaked and disclosed April 14.

Last updated: 2026-11-09

Overview

No published count (count blank). Name, phone and handling history for members who called the free dial in the period. Cards/licences not on that server.

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. <重要>業務委託先に対する不正アクセスによる個人情報の漏えいの可能性に関するご報告とお詫びモビリティプラットフォーム株式会社 · 2026-11-09

Related information

nippon-telenet-ransomware-possible-leak-2026

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