Apple uses segments for itself, FLoC is a web standard, so third-parties can de-anonymize as a side-effect: https://github.com/WICG/floc/issues/100 https://gith

Apple uses segments for itself, FLoC is a web standard, so third-parties can de-anonymize as a side-effect: https://github.com/WICG/floc/issues/100 https://github.com/WICG/floc/issues/100 Frankly the same problem exists in PCM’s, Apple’s proposed solution to allow private tracking from ad clicks: https://github.com/privacycg/private-click-measurement/issues/78#issuecomment-814161276 https://github.com/privacycg/private-click-measurement/issue... However, both of these are solutions to help web developers of third-party sites and ad networks track end users anonymously. All would argue that they’re better than third-party cookies, though in reality, users might want to turn off or opt out of both of these anonymize tracking devices. Another way of putting it: I don’t mind sharing my data with Apple when Apple says to trust them. I also don’t mind sharing data with Google when Google says to trust them. I do both on a regular basis with iCloud and Google Drive for example. What I have a problem with is when people try to “solve” third-party cookies in a way that doesn’t increase privacy but simply pretends to. I’m not against first party telemetry data, I love it as an engineer and I know that bugs found and reported with it can be fixed, thus improving my experience with products. What I dislike is when advertising companies can sign deals with Google or Facebook and gain access to lots of info about how well their campaigns are working, or when I don’t know when my data is being used, or when companies start messing with DNS so third-parties look like first-party just to increase revenue. To me it says it all that Google apparently turns off FLoC when inside GDPR zones. Only stronger laws will actually prevent bad behaviour on legitimate rule-abiding services. Only providing less and less means of tracking can we truly start to prevent it technically. Looking for replacements to tracking to support existing business models is doomed to failure as long as people can keep voting, literally and figuratively, for privacy-preserving alternatives and policies.