[flatb]

Not to be picky, because to be honest I completely believe that what you say is plausible, but that's a lot of outrageous claims with very little in the way of examples or evidence.

[kakkksaknmdm]

This is what we knew of in 2015: https://boingboing.net/2019/05/22/unique-device-fingerprints... you can figure out where the industry is now yourself.