- From: Dominique Hazael-Massieux <dom@w3.org>
- Date: Tue, 11 Dec 2012 09:45:05 +0100
- To: Martin Thomson <martin.thomson@gmail.com>
- Cc: Adam Bergkvist <adam.bergkvist@ericsson.com>, "public-media-capture@w3.org" <public-media-capture@w3.org>
Le lundi 10 décembre 2012 à 09:44 -0800, Martin Thomson a écrit : > Not so. Fingerprinting pertains to the ability of the same tracker > bug being implanted in the two different sites in order to correlate > information about the same browser for the site. I'm not sure I would restrict fingerprinting to that use case. Even though a single site can use cookies to track a user, the user is in control of these cookies, and so can take action to avoid that tracking (in the simplest case, emptying a given site cookie list and local storage). That wouldn't be the case for these device ids that are completely opaque to the user. Imagine a user that uses a site under two different identity, and takes care of carefully cleaning cookies between these two usages (or more realistically, uses a system that does it for her); if we expose stable device ids that are scoped per site, then suddenly the site knows that these two apparently distinct users are the same (or at least use the same browser/computer). Dom
Received on Tuesday, 11 December 2012 08:45:29 UTC