A joint investigation team involving French and Dutch authorities has taken down Matrix, yet another end-to-end encrypted chat service created for criminals.
Matrix – also know as Mactrix, Totalsec, X-quantum, and Q-safe – was first identified by Dutch authorities on the phone of a criminal convicted for the murder of Dutch crime journalist Peter R. de Vries in 2021, and the discovery prompted an investigation into the service.
https://www.helpnetsecurity.com/2024/12/03/matrix-encrypted-chat-takedown/