As I user who cares deeply about privacy and has almost everything enabled -- "strict" anti tracking protection on the browser, uBlock origin, DNS level filtering etc -- I discovered that any the fingerprint for my Firefox is pretty much unique on the entire Internet.
One thing that astonished me was that the number of hardware cores of my CPU is easily accessible from JavaScript. I have an AMD machine with 8 cores and 16 threads. Somehow it is on the high end of machines that access the Internet, and only a small fraction of users have a 8 core CPU. Combined with just a few other parameters, especially IP address, it is easy to uniquely identify this computer.
Just one additional channel of information from WebUSB barely matters at all.
As I user who cares deeply about privacy and has almost everything enabled -- "strict" anti tracking protection on the browser, uBlock origin, DNS level filtering etc -- I discovered that any the fingerprint for my Firefox is pretty much unique on the entire Internet.
One thing that astonished me was that the number of hardware cores of my CPU is easily accessible from JavaScript. I have an AMD machine with 8 cores and 16 threads. Somehow it is on the high end of machines that access the Internet, and only a small fraction of users have a 8 core CPU. Combined with just a few other parameters, especially IP address, it is easy to uniquely identify this computer.
Just one additional channel of information from WebUSB barely matters at all.