Japan Ministry of Foreign Affairs Network Breached; ~3,600 Names and Email Addresses Potentially Exposed

According to Security NEXT, Japan's Ministry of Foreign Affairs (MOFA) detected an intrusion on an externally connected network on July 27, 2026, and subsequently blocked access and disabled authentication credentials ^[1]. Following an investigation with external assistance, authorities determined that personal information including names and email addresses for approximately 3,600 entries may have been exposed, including roughly 900 individuals external to the ministry ^[1]. MOFA stated that no highly classified information was found among the potentially leaked data and no misuse or secondary damage has been confirmed ^[1].

Industries mainly affected: Government

MOFA stated that no highly classified information was found among the potentially leaked data and no misuse or secondary damage has been confirmed ^[1].