Toho

1MinorInvestigatingAnnounced

One employee email account was misused to send suspicious emails, announced on April 7, 2026. The range of recipients was under investigation.

This incident was imported from a dataset that compiles public announcements, and we are still checking it against the sources. Counts and causes will be updated after the check. Sources are in Japanese.

Cause
Email account compromise
Occurred
2026-03-31 – 2026-04-06
Operational impact
None

Sources

  1. 【重要】不審メール送信に関するお知らせとご注意、お詫びについてwww.to-ho.co.jp · Published 2026-04-07(opens in a new tab)