Researchers have proposed a cross-browser fingerprinting technique that uses OS and hardware-level features. The researchers claim to have successfully identified 99.24% of users in their dataset compared to 90.84% for the state of the art of single-browser fingerprinting.
Researchers have recently developed the first reliable technique for websites to track visitors even when they use two or more different browsers. This shatters a key defense against sites that identify visitors based on the digital fingerprint their browsers leave behind.
State-of-the-art fingerprinting techniques are highly effective at identifying users when they use browsers with default or commonly used settings. For instance, the Electronic Frontier Foundation's privacy tool, known as Panopticlick, found that only one in about 77,691 browsers had the same characteristics as the one commonly used by this reporter. Such fingerprints are the result of specific settings and customizations found in a specific browser installation, including the list of plugins, the selected time zone, whether a "do not track" option is turned on, and whether an adblocker is being used.
Until now, however, the tracking has been limited to a single browser. This constraint made it infeasible to tie, say, the fingerprint left behind by a Firefox browser to the fingerprint from a Chrome or Edge installation running on the same machine. The new technique—outlined in a research paper titled (Cross-)Browser Fingerprinting via OS and Hardware Level Features—not only works across multiple browsers. It's also more accurate than previous single-browser fingerprinting.
(Score: 1, Informative) by Anonymous Coward on Wednesday February 15 2017, @03:39AM
Why is it always JavaScript?!
In the paper, we propose a (cross-)browser fingerprinting
based on many novel OS and hardware level features, e.g.,
these from graphics card, CPU, audio stack, and installed
writing scripts. Specifically, because many of such OS and
hardware level functions are exposed to JavaScript...
(Score: 2) by takyon on Wednesday February 15 2017, @03:45AM
I'm thinking <canvas>, <video>, and <audio> have something to do with it.
What advanced font feature could be responsible? Is it in CSS?
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(Score: 3, Interesting) by Pino P on Wednesday February 15 2017, @05:45AM
Exact spacing of rendered web fonts (TTF, WOFF, etc.) can affect word wrapping and thereby cause element height to hit breakpoints.
(Score: 0) by Anonymous Coward on Wednesday February 15 2017, @06:14AM
List of installed fonts?