In case you hadn’t seen this story, which I believe fits a similar bill, here is the case of the Cyberbunker. This took place in the Netherlands.

Darknet Diaries has an (excellent, as always) episode about it. If it wasn’t that podcast it might have been Malicious Life.

https://www.newyorker.com/magazine/2020/08/03/the-cold-war-b...