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[Investigating][Severity: Moderate][Unknown]

Iris Plaza: unauthorized access to its online shop leads to a site shutdown while a possible data leak is investigated

Unauthorized access was found on the Iris Plaza online shop run by Iris Plaza, and the site was suspended. A possible leak is under investigation.

Disclosed

2026-10-29

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. A suspicious file was found on the server in the early afternoon, and the site was stopped about 30 minutes later. [1] [2]

  2. Parent company Iris Ohyama announced the suspension of the online shop run by its subsidiary Iris Plaza. [1] [2]

Impact

A possible data leak is under investigation. No credit card leak is confirmed. [1] [2]

Timeline

  1. Detected 2026-10-28
  2. Disclosed 2026-10-29
  3. 1 days

Attack or cause

Method
[Unknown]
Impact
[Service outage]
Entry point
Unknown

Data exposed or at risk

–

Services hit

Organizations involved

Open in organization search

Sources

  1. [1][Official]株式会社アイリスプラザECサイト一時停止のお知らせIris Ohyama · 2026-10-29
  2. [2][News]アイリスオーヤマ、公式通販サイトを一時停止　不正アクセスを確認Nikkei · 2026-10-29