An outage occurred in the service that allows users to obtain family register certificates and other documents at convenience stores using their My Number Cards, starting around 6:30 AM on November 10th. The Japan Agency for Local Authorities Information Systems (J-LIS), which operates the service, announced on its official website that it confirmed restoration around 4:20 PM on the same day. Kyodo News reported on the 10th that, according to J-LIS, certificate issuance was temporarily unavailable in 408 municipalities nationwide.

The restoration announced by J-LIS specifically concerned the convenience store issuance of family registers (koseki) and supplementary family registers (koseki no fuhyo). A supplementary family register is a document that records the address history of individuals listed in a family register. In Chita City, Aichi Prefecture, in addition to full and abridged family register copies, user registration for receiving family register certificates at convenience stores when the current address and permanent domicile differ also became unavailable.

Chita City explained that an abnormality occurred in the network communication of the certificate issuance system provided by FUJIFILM System Service, which the city utilizes. According to reports, J-LIS is investigating, suspecting a communication failure as the cause, and has stated that the possibility of unauthorized access is low and no personal information leakage has been confirmed.

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