Take Control of iOS & iPadOS Privacy and Security, 2nd Edition

Apple Blocks Tracking in Safari

Advertising-technology companies have built elaborate ways to track us across websites, apps, and even real-world purchases that we make. They extract location information from ads and trackers embedded in apps that let them overlay our physical location—without our explicit permission or knowledge—with our digital activities. It’s incredibly creepy and a huge violation of trust. In some countries and regions, it’s outright illegal.

The goal isn’t just to invade our privacy. Rather, ad-tech networks assemble a valuable profile of us, full of demographics (our age, race, income, and so on) and our purchasing habits. This allows them to charge the highest fees from advertisers, who believe super-targeted ads produce ...