Overview
“Up to 1,800” → blank.
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
- 委託先事業者に対する不正アクセスによるお客様情報の漏えいについて株式会社湖池屋 · 2026-11-09