Metadata and social graphs are more important than message content, esp since not many people have the time to read through individual messages to build meaning.
Signal stores phone numbers (meaning your identity, and home address), and message timestamps: who texted who and when, and who’s in chats with who else. More than enough to build social graphs and connections, and also figure out where people are through their IP addresses.
Do you happen to know what metadata matrix stores? I assume matrix.org specifically stores email and username, right
Signal can’t see who is texting who. They can’t see which groups you are part of. Those information are end to end encrypted, same as your chats itself, your profile picture, your stories, etc.
Signal doesn’t store message timestamps either.
What Signal itself knows of you is your phone number, the timestamp of your registration, the timestamp of your last connection to the server. That’s it.
Yes metadata is critical but Signal handles metadata very well. Indeed, even though I’m a fan of Matrix, better than Matrix. Matrix is a metadata nightmare due to it’s centralized structure and the way the protocol works.
Signal can’t see who is texting who. They can’t see which groups you are part of. Those information are end to end encrypted, same as your chats itself, your profile picture, your stories, etc.
This is completely false. They can absolutely see who is texting who, in fact they need it to be able to route messages. They have message timestamps, and phone numbers stored in their database.
Question, why do you “trust” signal? You can’t see what code their centralized server is running, unlike matrix which you can self-host and build from source. You don’t have to “trust” matrix, you can verify it for yourself.
Signals server is open source. You can run a server. You just can’t connect to the main net because each server is it’s own thing so it doesn’t make sense besides for development purposes.
Please don’t spread misinformation.
- Signal server is open source (as said) and thus can be verified: https://github.com/signalapp/Signal-Server
- and no they can’t see who you message as you can read in the technical specifications of the protocol: https://signal.org/docs/
