Linked by Thom Holwerda on Tue 22nd Jul 2014 08:49 UTC
Internet & Networking

A new, extremely persistent type of online tracking is shadowing visitors to thousands of top websites, from to

First documented in a forthcoming paper by researchers at Princeton University and KU Leuven University in Belgium, this type of tracking, called canvas fingerprinting, works by instructing the visitor's Web browser to draw a hidden image. Because each computer draws the image slightly differently, the images can be used to assign each user's device a number that uniquely identifies it.

Advertising companies will become increasingly... 'Creative' to find some way of tracking us that circumvents known laws and technological barriers. However, I doubt you have to worry about the small fish - worry about what the biggest internet advertising company in the world has cooking in its labs.

Permalink for comment 592901
To read all comments associated with this story, please click here.
RE: Comment by Drumhellar
by oskeladden on Tue 22nd Jul 2014 23:35 UTC in reply to "Comment by Drumhellar"
Member since:

Fascinating, and worse than I expected. With Javascript enabled, I was told:

Your browser fingerprint appears to be unique among the 4,323,691 tested so far.

With Javascript disabled (my usual configuration), I was told:

Within our dataset of several million visitors, only one in 540,462 browsers have the same fingerprint as yours.

Which I guess means I'm one of eight visitors to their website with my configuration.

I usually have my browser deliver a random user-agent, which should also throw fingerprinting off a bit. But this, now, is an example of tracking that really is very hard to fight.

Reply Parent Score: 4