I can remember there was a concept of floating accounts on Matrix, similar to how groups are spread across servers. Accounts are currently tied to a server, but groups live until the last server participating in that group lives. If someone knows a link to a spec or something, I’ll be grateful. Will update this post once I find something.
If it happens even in encrypted rooms, maybe that’s a problem.
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Briefly, what’s sensitive in room state data? Who joined? Who replied to whom? Or maybe even “here’s the full list of emails and phone numbers of persons talking about a topic which is forbidden in a certain country”?
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