Can someone just guess shared secrets? in Sync General Discussion Posted June 7, 2013 · Report reply So he just enters the secret (which he knows) on another machine, or renames his device. Then what?Good point. How could I not think of that?By that time all other clients should be using the new key. If there is a client with the old key and there is none currently online with the new key then they would keep sharing until one comes online. Or maybe the revoked client could be tricked into leaving the swarm. Also it wouldn't just work with the device name only and it's supposed to be transparent so the client being revoked wouldn't know until it's too late.Anyway, this is an idea born dead.Maybe custom trackers could be used for optional central management one day.