Become a fan of Slashdot on Facebook


Forgot your password?
Take advantage of Black Friday with 15% off sitewide with coupon code "BLACKFRIDAY" on Slashdot Deals (some exclusions apply)". ×

Submission + - Tracking browsers without cookies or IP addresses? ( 1

Peter Eckersley writes: The EFF has launched a research project called Panopticlick, to determine whether seemingly innocuous browser configuration information (like User Agent strings, plugin versions and, fonts) may create unique fingerprints that allow web users to be tracked, even if they limit or delete cookies. Preliminary results indicate that the User Agent string alone has 10.5 bits of entropy, which means that for a typical Internet user, only one in about 1,500 (2 ^ 10.5) others will share their User Agent string.

If you visit Panopticlick, you can get an reading of how rare or unique your browser configuration is, as well as helping EFF to collect better data about this problem and how best to defend against it.

This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Tracking browsers without cookies or IP addresses?

Comments Filter:

Numeric stability is probably not all that important when you're guessing.