Comment by summerlight
3 years ago
> Modern adtech can track users regardless if cookies are enabled or not, and whether they enable this new Chrome feature or not, via browser fingerprinting. They've been doing this for years.
One of the explicit goal of "privacy sandbox" is preventing browser fingerprinting by limiting informational entropy from user environment. https://github.com/mikewest/privacy-budget
But the implicit goal is that _Google_ now owns fingerprinting in Chrome, versus the various other actors and tech in the space. Same as Apple owning fingerprints in iOS (and thus disrupting Facebook).
For anything “privacy tech” you must divorce the adversarial case (an actor maximizing an attack vector) with the average case (a monopolistic company using the tech to control overall opportunity costs). The latter has under-funded public study because Google et al will both throw gobs of money against it and throw shiny privacy tech problems out there to distract researchers.