Subject: Re: [Add] Not looking at DNS privacy in isolation

From: "Livingood, Jason" <[email-masked]>
Date: Fri, 29 Nov 2019 14:00:17 +0000

> As Patrick wrote, local resolvers typically have information correlating the IP address with the user's identity. Off path resolvers and server side resolvers may or may not have that information. Off path resolvers could obtain it if they correlate their logs with tracking data from advertisement systems. Server side resolvers could obtain that information from the locally served web sites.

[JL] The ability to link to source IP address also exists for other types of DNS operators (that do more than DNS) from related/linkable non-DNS datasets - as you note. I suppose my only point was that as potential threats are considered, its best to take an expansive view (it seems we generally agree).