Toho Holdings announced that, following unauthorized access to Blastmail, its subsidiary may have suffered an information leak. No confirmed information regarding the leak or its scope of impact has been disclosed at this point.
Toho Holdings announced on 23 October 2026 that its subsidiary may have suffered an information leak associated with unauthorized access to Blastmail.
The company confirmed that unauthorized access had occurred and disclosed that it was investigating the possibility that the affected information had been leaked.
The announcement describes the access route through Blastmail and the status of an investigation into part of the subsidiary's handling of information.
Further information is expected regarding the scale of the leak, its impact and the measures to be taken.