Following an outage of the REvil - aka Sodinokibi - ransomware operation due to coordinated law enforcement efforts involving the U.S. and foreign partners, the operators behind DarkSide ransomware have moved Bitcoin worth almost $7 million to multiple new wallets, making it more difficult to track.
https://www.inforisktoday.co.uk/darkside-transfers-7-million-worth-bitcoin-a-17787