KADOKAWA: servers of its Taiwanese subsidiary Taiwan Kadokawa suffered unauthorized access that appears to be ransomware, and personal and corporate information may have leaked

1. 2021-06-03

   It found that servers of Taiwan Kadokawa might have suffered unauthorized access that appears to be ransomware. It stopped the servers and PCs of Taiwan Kadokawa that might be affected and cut off the network. It also suspended the service of the Taiwan Kadokawa official site until the safety of information could be confirmed. [1] [2]

2. 2021-06-04

   KADOKAWA made the announcement. [1] [2]

3. 2021-07-16

   KADOKAWA announced the investigation result and the response toward recovery for the unauthorized access to the Taiwan Kadokawa servers it announced on June 4. No trace of information leaking was found. [3]

The damage stayed on the servers of Taiwan Kadokawa, and KADOKAWA confirmed that its own servers and network were not affected. The information that may have leaked is expected to be personal and corporate information, and does not include credit card data. It consulted the police and others in Taiwan and is investigating the cause. It did not disclose the state of any extortion. [1] [2]