European law enforcement agencies arrested hundreds of suspects in several countries including France, Netherlands, the UK, Norway, and Sweden after infiltrating the EncroChat encrypted mobile communication network used by organized crime groups.
https://www.bleepingcomputer.com/news/security/hundreds-arrested-after-encrypted-messaging-network-takeover/
https://www.bleepingcomputer.com/news/security/hundreds-arrested-after-encrypted-messaging-network-takeover/