Confirmed

King Jim: Shopserve intrusion leaked legacy EC customers’ personal data

Legacy Shopserve (Estore) was breached May 21–Aug 1, 2026; on Aug 31 King Jim learned past store customers were in scope and disclosed Sep 4. Current EC out of scope. Cards/passwords not confirmed leaked.

Last updated: 2026-11-09

Overview

No published headcount → 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. Eストアー「ショップサーブ」への不正アクセスによる個人情報漏えいに関するお詫びとお知らせ株式会社キングジム · 2026-11-09

Related information

shopserve-ec-platform-data-breach-2026

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