Researchers have created a new browser/web tracker. It is able to track you trough several browsers on the same system. And it does this with a very high succession rate.
It works by tracking properties of the operating system and hardware (like GPU and CPU). It is able to detect a user successfully in 99.24% of the cases. That is even better then a traditional tracker (single browser, cookies, user-agent etc.) 90,84%
The first generation webtrackers used only cookies. Later on the tracker used detection of installed plug-ins and user-agent properties. But because users do use more then one browser they miss out on some of your data. So they came up with this. In my eyes a new way to invade my system and my privacy.
In the paper it is clear that they use javascript for tracking. So well blocking that helps. But it will break a lot of websites.
Still the Tor browser is able to block most of the tracking. Only some info about soundcard and screen resolution is gathered then.
The paper for more info you find here: http://yinzhicao.org/TrackingFree/crossbrowsertracking_NDSS17.pdf