Third parties <p>As part of being a participant in the wider Matrix ecosystem, the Service may be required to share your information, messages, and files with users on different homeservers or even other messaging platforms.</p> Federation <p>Matrix homeservers share user data with the wider ecosystem over federation. When you send messages or files in a room, a copy of the data is sent to all participants in the room, including (depending on room settings) participants who join the room in the future.