This is positive action taken by Microsoft and the US courts to disrupt the operations of the hacking group Nickel.
Protecting people from recent cyberattacks – Microsoft On the Issues
Microsoft seizes domains used by “highly sophisticated” hackers in China | Ars Technica
This action has given Microsoft control of a series of domain names, removing them from the hacker’s control, and then directing any traffic – usually user who are part of an active attack – to non-malicious sinkholes. This action protects the users and are give the analysts to opportunity to examine the attacks, code and structure which are vital steps in defeating this and other hacking groups.
Clive Catton MSc (Cyber Security) – by-line and other articles
The Microsoft blog references an interesting resource document examining State Sponsored Threat Groups:
Microsoft Digital Defence Report OCTOBER 2021 – Sample of nation state actors and their activities
