Nice evidence for why site operators should be running their own NTP servers.  If you run 1 server set per site which doesn&#x27;t even need a strong local clock, you mitigate this information leakage.<p>I&#x27;d think this is something that most network designers&#x2F;engineers would get.  That said, I&#x27;d be a rich man if I had a nickel for every time I saw NTP misconfigured.