this post was submitted on 07 Sep 2023
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Privacy
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Google's new ad system is called Topics. If you want to understand how it works, I would like to point you to Security Now Ep 935 in which Steve Gibson gives a pretty thorough analysis.
Marcus' take in the image is overly simplistic and a bit FUD. The intention is for Topics to replace current ad tracking systems such as tracking pixels and other metrics. In conjunction with implementing Topics, Google is removing third-party cookies from Chrome, which will eliminate most of the current invasive tracking tools.
I'm not really a Google fanboy and I'll probably just stick with Firefox personally, but everything about Topics sounds less privacy invasive than the way things are done now. If Google can force this change on the internet advertising market it will actually be an improvement for user privacy.
It's not overly simplistic. It's simply not a privacy feature if the core functionality is sharing your data. Privacy is if they stopped sharing data. Sharing more data is antithetical to privacy.
Theoretically, Topics doesn't track anything beyond general interest categories (e.g. fishing, shoes, technology, dancing, etc) and would replace current data collection systems for targeted ads. If actually implemented as described, it would result in the ad market collecting and sharing less data on users. Basically, Topics is a step in the direction that you're talking about.
I only see evidence that this replaces FLoC, but not cookies. Even Google's statements about what cookies and data they collect hasn't changed. This is a Chrome specific capability. Topics replaces Federated Learning of Cohorts which didn't use cookies either.
Edit: nevermind. FLoC was a technology that allowed ad data to be collected even when third party cookies are disabled. Essentially it allowed chrome to collect data that Firefox and Safari already blocked when third party cookies are disabled.
So this isn't replacing cookies at all, just FLoC. And it's not replacing something "worse". It's still totally something that Chrome is collecting without cookies or any need to do so.