DOJ reclaims millions paid to hackers after attack that hobbled US pipeline
theguardian.com
theguardian.com
All of which would be interesting to know as to how they intend to finght these groups. Of course the group would know which of these, or at least have a good idea of which it was, depending on how they lost access to their funds. On that basis I cant see any reason to keep the knowledge from the public as they cybercriminals are likely to share that info amongst themselves anyway, so the secrecy aspect is lost once the method is used.
https://krebsonsecurity.com/2021/06/justice-dept-claws-back-...