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COTA: cyberattack may have allowed viewing of staff, partner, shareholder and customer data

Possible data leak: Unauthorized access found Mar 27, 2026 after PC anomalies; full isolation followed. After a Mar 30 outage notice, expert review found no confirmed exfiltration/misuse but could not rule out viewing; Aug 20 notice listed category counts for notification. No card data.

Dernière mise à jour: 2026-11-09

Ce contenu est affiché en English.

Présentation

Category counts (591/684/35,274/16,133/55,408/661/124/272) are subsets and are not summed → count blank.

Chronologie

InconnuSurvenue
2026-03-27Découverte
2026-08-20Divulgation

Réponse de l’organisation

Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.

Que faire ?

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

お客さまの個人情報に関するお知らせとお詫びコタ株式会社 · 2026-11-09

COTA: cyberattack may have allowed viewing of staff, partner, shareholder and customer data

Présentation

Chronologie

Réponse de l’organisation

Que faire ?

Sources

Informations associées

Aucune information publiée

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