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Re:Twilio incident: What Signal users need to know by MayeulC on Monday August 15, 2022 @05:14PM (#32475473)
I like Matrix, but I admit its E2 EE rooms seem to leak more metadata (users in th room, reactionss, maybe replies, display names, avatars) than Signal.
Re:Twilio incident: What Signal users need to know by lrvick on Monday August 15, 2022 @09:13PM (#32478043)
They leak metadata to the operators of the server. So does Signal, albeit anchored to SGX nodes they pretend they cannot access. Signal also has phone numbers making even worse.

With matrix at least you can pick a server operator you trust to provide your metadata to, or host a server yourself.