The Okinawa Kaiho Bank: 3,497 cancelled seal impression cards (for 2,549 customers) from six branches are missing, probably discarded by mistake

It came to light that "cancelled seal impression cards" for deposit accounts of 2,549 customers handled between 2010 and 2019 are missing at six branches: Urasoe, Tsujimachi, Jiraku, Awase, Sekido and Yaeyama. There are 3,497 cards in all, showing names, addresses, birth dates, account numbers and seal impressions. [1]

The time and cause of the loss are unknown. There have been no inquiries or improper demands about the documents, and the bank said it probably discarded them by mistake. [1]