Investigating

Daiki Suisan: app intrusion may have exposed personal data on 174,933 members

Unauthorized access to the official app confirmed Sep 15, 2026. Personal data on 174,933 registrants (Nov 1, 2024–Sep 15, 2026, including churned) may have leaked; disclosed Oct 5. Passwords on a separate server out of scope.

Last updated: 2026-11-09

Overview

174,933 people.

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. 公式アプリへの不正アクセスによる個人情報漏えいの可能性に関するお詫びとお知らせ株式会社大起水産 · 2026-11-09

Related information

Share a report

No published information yet

Information appears here after source checks or moderation.

Comments and replies

Write a comment

No account needed. Comments appear immediately.

Do not post private names, addresses, passwords, or codes. Automatic masking is limited; review your content before submitting.

Required fields are marked *.

After submitting the text, you can redact and attach images.

Loading the security check. You can submit once it is complete.