Confirmed

Shochiku Multiplex Theaters: 3,320,305 SMT Members records leaked via Arara breach

Shochiku Multiplex Theaters announced on November 4 that the Arara Message breach used for SMT Members email had exfiltrated member registration data, with a confirmed count.

Last updated: 2026-11-09

Overview

3,320,305 records: emails, member numbers, names, gender, birth dates and partial addresses (postal code, prefecture, city). No phones, passwords or cards. Previously told on October 30 they were out of scope; confirmed in scope on November 2. This stems from the Arara email-platform intrusion (recorded separately); the figure is a subset of the vendor scope and must not be added to it.

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. メール配信サービス「アララ メッセージ」への不正アクセスによるSMT Members会員情報の流出に関するお詫びとお知らせ松竹マルチプレックスシアターズ株式会社 · 2026-11-09

Related information

arara-message-platform-breach-2026

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