this post was submitted on 27 Feb 2026
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Privacy
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It doesn't work like a centralized server for connecting contacts. You use a unique link per device to initiate the original connection with others at a distance or you can use QR codes in-person.
The link just tells briar where to route the messages and looks like:
So there's no way to impersonate someone directly. If you made two contacts and they use the same username, I suppose you could mistake them, but their contact connection keys will not be the same.
Hopefully that makes sense, if you look in the app or their site, it's probably explained clearer.