Incidents on Sep 11, 2026

Publication date: Dates are source publication dates (JST), not occurrence dates.

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Incidents on Sep 11, 2026
DateTargetSummaryClassificationSource links
LEAK-054Digital Agency "Government Solution Service (GSS)"A About 246,000 recordsA third party broke in by exploiting a vulnerability in a VPN device, and about 246,000 items of personal information, including names and email addresses of staff of ministries and agencies and people involved in their work, may have been leaked. It does not include My Number or similar data; the activity was detected on June 25 and the intrusion identified on July 9.
Unauthorized access & data leakPossibleOfficial statement
LEAK-076mogily digital ticket systemD 133 peopleThe mogily management system was accessed without authorization from outside on September 9-10, and lottery results for 133 customers of one client, who had actually won, were rewritten to a losing status. No leak of personal information was confirmed, and the statuses are stated to have been restored.
Tampering & unauthorized operationConfirmedOfficial statement
LEAK-064Nihon TorekusuParent company Kyokuto Kaihatsu Kogyo announced that a system failure caused by unauthorized access occurred at its subsidiary Nihon Torekusu on September 8. Online ordering, the dealer parts-order system and email exchange with customers and partners are suspended, and no external leak of personal or customer data has been confirmed.
Unauthorized access & data leakUnder investigationOfficial statement
LEAK-068Halmek Holdings "HALMEK up"The ID and password of one employee were stolen, and unauthorized access to the administration screen of the website HALMEK up was confirmed on September 9, 2026. The current investigation has found no log evidence of access to customer management information, and details are still being investigated.
Unauthorized access & data leakUnder investigationOfficial statement
LEAK-070Tsuburaya Productions "ULTRA MART"The digital ticket system (mogily) used for lottery sales at Tsuburaya Productions' "ULTRA MART" was accessed without authorization by a third party, causing inconsistencies in lottery result data and changing some winners to a losing display. No leak of personal information has been confirmed.
Supply chainConfirmedOfficial statement
Incidents on Sep 11, 2026