Suginami Ward: the server of the social welfare corporation Fukuinryo, which runs its after-school clubs, was infected with ransomware and all data was encrypted

1. 2023-05-30

   In the morning a staff member of the contractor noticed that files on the server could not be opened and contacted a specialist firm, which began responding. [1] [3]

2. 2023-06-01

   The contractor contacted Suginami Ward. [1]

3. 2023-06-07

   Suginami Ward announced the case. [1] [3]

All data on the server holding the data needed to run the entrusted services was encrypted, including data of 11 after-school clubs and 7 after-school programs, and it contains users' personal data. To avoid risk, all the encrypted data was deleted. The infection route and whether information leaked are under investigation, and no outside leak of data has been confirmed at this point. Parents of the children using the services were informed and apologized to by email. [1] [2] [3]