Overview
“About 100,000” → 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
- お問い合わせフォーム委託先への不正アクセスによるお客様情報漏えいの可能性についてシチズン時計株式会社 · 2026-11-09