How To Turn Off Google’s “Privacy Sandbox” Ad Tracking—and Why You Should

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Google has rolled out “Privacy Sandbox,” a Chrome feature first announced back in 2019 that, among other things, exchanges third-party cookies—the most common form of tracking technology—for what the company is now calling “Topics.” Topics is a response to pushback against Google’s proposed Federated Learning of Cohorts (FLoC), which we called “a terrible idea” because it gave Google even more control over advertising in its browser while not truly protecting user privacy. While there have been some changes to how this works since 2019, Topics is still tracking your internet use for Google’s behavioral advertising.

If you use Chrome, you can disable this feature through a series of three confusing settings.

With the version of the Chrome browser released in September 2023, Google tracks your web browsing history and generates a list of advertising “topics” based on the web sites you visit. This works as you might expect. At launch there are almost 500 advertising categories—like “Student Loans & College Financing,” “Parenting,” or “Undergarments”—that you get dumped into based on whatever you’re reading about online. A site that supports Privacy Sandbox will ask Chrome what sorts of things you’re supposedly into, and then display an ad accordingly. 

The idea is that instead of the dozens of third-party cookies placed on websites by different advertisers and tracking companies, Google itself will track your interests in the browser itself, controlling even more of the advertising ecosystem than it already does. Google calls this “enhanced ad privacy,” perhaps leaning into the idea that starting in 2024 they plan to “phase out” the third-party cookies that many advertise

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