Investigating

STARTDASH: account data of 39,267 users across Kyuun and 11 apps may have leaked

After seeing sales claims on an overseas site on April 11, 2026, STARTDASH found third-party access to an internal log console from April 1–6 and disclosed possible exposure of 39,267 users on April 14.

Last updated: 2026-11-09

Overview

39,267 people: handle, email, phone, password, profile and IP among fields. Cards, chats, ID images and bank data not confirmed leaked.

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. 個人情報漏えいに関するお詫びとご報告STARTDASH株式会社 · 2026-11-09

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