[e-privacy] SocialHistory.js

[George Orwell]

Ennesimo tool di profilazione web: come rilevare siti
visitati in passato dai visitatori del nostro sito.

http://azarask.in/blog/post/socialhistoryjs/

***

How does SocialHistory.js know? By using a cute information
leak introduced by CSS. The browser colors visited links
differently than non-visited links. All you have to do is
load up a whole bunch of URLs for the most popular social
bookmarking sites in an iframe and see which of those links
are purple and which are blue. It's not perfect (which, from
a privacy perspective, is at least a little comforting) but
it does get you 80% of the way there. The best/worst part
is that this information leak probably won't be plugged
because it's a fundamental feature of the browser.


Il mittente di questo messaggio|The sender address of this
non corrisponde ad un utente   |message is not related to a real
reale ma all'indirizzo fittizio|person but to a fake address of an
di un sistema anonimizzatore   |anonymous system
Per maggiori informazioni      |For more info
                  https://www.mixmaster.it