Confirmed

cocoloni: member emails and hashed passwords leaked after intrusion

Unauthorised access occurred 27 Nov–13 Dec 2025; possible exfiltration was seen on 13 Dec and, after review, emails and hashed passwords were confirmed leaked in a January 21, 2026 notice.

Last updated: 2026-11-09

Overview

Passwords are stored in a hard-to-reverse form and no login abuse was seen. No count published (count blank). PPC notified.

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. 【重要なお知らせ】不正アクセスによるメールアドレスの流出に関するご報告とお詫び株式会社cocoloni · 2026-11-09

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