They never even used Telegram, X, or similar common channels for communication. As far as I know, only SimpleX chat.
They used twitter account, but that was not active for a long time, and simplex chat was mainly used by developers.
Wow, what a crazy ending to it all. A lot of parallels here with the Chi**ixer shutdown, and even more with Sinbad. (Sinbad the genie, of course). The moral of the story is don't accept funds from N. Korea funded hackers if you want to continue to exist. Just do the slightest bit of due diligence, and when you see them coming in, isolate the input and send it back!
Oh yes, the evil North Korean hackers, perfect escape goat to blame them for everything

First you would stop accepting coins that you suspect are connected with them, and than by another, and another.
Soon enough you are not goin to accept coins from whole continents, but only approved by blackrock and government puppets

I am starting to think that those hackers and services are not the real problem here, but that
bitcoin is not really fungible, and that is a fact now.