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Yokohama City: personal data may have leaked via e-application email-service intrusion

Possible data leak: Yokohama City announced on November 3 that unauthorised access was detected on the email-sending service used by its e-application system and that impact on the city's environment and any personal-data leak were still being checked.

Dernière mise à jour: 2026-11-09

Ce contenu est affiché en English.

Présentation

No count or field list on the page (count blank). The email service was stopped. The provider is not named on the page.

Chronologie

InconnuSurvenue
InconnuDécouverte
2026-11-03Divulgation

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

横浜市電子申請・届出システムが使用するメール送信サービスにおける個人情報の漏えいの可能性について横浜市 · 2026-11-09

Yokohama City: personal data may have leaked via e-application email-service intrusion

Présentation

Chronologie

Réponse de l’organisation

Que faire ?

Sources

Informations associées

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