@kuba same as fakebook with 1 pixel beacon. the power of big data and good algorithm. So they have hits from time to time from person X on different sites because of that pixel or fonts, but somewhere on server now records exist. At some point person will open site where they are logged in, so now ALL these records have name on it. I'll admit, just recording an IP with request for font/beacon is not so powerful as tracking, but this is not only thing to fingerprint someone. @meena @jayrope
@meena @kuba @jayrope They discovered these simple tricks in the mid 2000s, and it's largely how Google got to be what it is now. Data mining the logs.
For a long time naive techies also gave them cover, with the mantra of "I trust Google with X". Sponsorship has also helped to ensure that nobody gives a tech talk about this. But I notice that the EU is now starting to get interested in self-hosted fonts, and so the classic grift might not be able to continue much longer.