Google's Privacy Sandbox

I believe the big Achilles heel of Google's Privacy Sandbox, their
continuing effort rolling out in trials already, is Ad Topics, that replaces
third party cookies with an advertising API involving local device modeling
of your browsing history into predefined categories (about 350), with sites
able to receive up to three of them most highly ranked.

Google asserts that this will maintain or increase the value of targeted ads
while increasing individual user privacy by moving away from third party …

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