September 21, 2007

TLS-Cookie can track you

Filed under: browser,firefox,privacy — admin @ 11:48 am

It’s always interesting how some features which are nice and really used, can become evil for you if your configuration is not very strict:

Alexander Klink found out that you can track people over websites by setting them a so called TLS-cookie. Which is nothing else than a server is setting you a client certificate in your Web browser, which is presented to every Web server without notifications by default settings within your Firefox. Read more on Heise.de in German.

So what to do? Just disable the automatic sending of a certificate under Preferences -> Advanced -> by switching from “Select one automatically” to “Ask me every time” in the Certificates section. With this option you will always be asked if a server is requesting a certificate if you want to present any. Then you can decide if you want to or not…

April 30, 2007

track me not!

Filed under: browser,firefox,google,privacy — admin @ 4:05 pm

That search engines are covering and analyzing your search queries for a better ad and other nonsense placement is a well known fact. So some people have started an interesting project: Track me not. A Firefox plugin which sends dummy queries to selected search engines.

From their Webpage:

TrackMeNot runs in Firefox as a low-priority background process that periodically issues randomized search-queries to popular search engines, e.g., AOL, Yahoo!, Google, and MSN. It hides users’ actual search trails in a cloud of ‘ghost’ queries, significantly increasing the difficulty of aggregating such data into accurate or identifying user profiles.

Nice tool, give it a try and test it!

Get it here

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