Confirmé

Sekibunkan: 320 customer emails leaked via misaddressed textbook-sales mail

On March 18, 2026 a textbook re-acceptance notice was sent so recipients could see one another’s addresses; apology published March 19.

Dernière mise à jour: 2026-11-09

Ce contenu est affiché en English.

Présentation

320 email addresses only. No names, addresses or phones. No secondary harm confirmed.

Chronologie

2026-03-18Survenue
2026-03-18Découverte
2026-03-19Divulgation

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

教科書販売に関するメール誤送信についてのお詫び株式会社積文館書店 · 2026-11-09

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