Investigating

Saga Hirakawaya online shop: card and customer data may have leaked after intrusion

After card-brand alerts, card payments stopped March 9, 2026. Investigation found possible card leakage (Mar 21, 2025–Mar 10, 2026) with some misuse risk, plus customer-data exposure (Apr 6, 2021–Mar 10, 2026); disclosed June 15.

Last updated: 2026-11-09

Overview

Card cohort 5,783 and other customers 30,170, plus differing headline figures (73,213 / 6,303); no single authoritative total, so the count field is blank.

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. 不正アクセスによる個人情報漏えいのお詫びとご報告株式会社佐嘉平川屋 · 2026-11-09

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