Nishi-Nihon Medical Link: its network was accessed without authorization from outside and a file server was damaged

A security alert was detected on August 31 and servers were stopped and the network cut. The investigation found a damaged file server.

Disclosed

2021-09-01

Organizations involved

Leaked or at risk

Unknown

Downtime

Unknown

What happened

2021-08-31
The information system detected a security alert. Servers that might be affected were stopped and the network cut. A task force was set up and, with outside experts, examined the cause and scope. [1]
2021-09-01
It announced the case. [1]
2021-09-30
It published an investigation summary. The file server had been damaged. [1]