Investigating

Chibagin Shoten: corporate-site server intrusion may have exposed customer personal data

Unauthorized access to the corporate-site server may have exposed stored customer data; disclosed Sep 17, 2026. Breakdowns (~192 individuals, ~722 corporates, ~7,670 email-only) are approximate. Cards/passwords not stored. C-VALUE shopping is separate.

Last updated: 2026-11-09

Overview

All subset figures are “about” → blank (not summed).

Timeline

UnknownOccurred
UnknownDiscovered
2026-09-17Disclosed

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

当社コーポレートサイトへの不正アクセス事案の発生についてちばぎん商店株式会社 · 2026-11-09

Chibagin Shoten: corporate-site server intrusion may have exposed customer personal data

Overview

Timeline

Organization response

What you can do

Sources

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