The App Store’s new Personalized Collections feature gives you tailored app recommendations based on your behavior. Sounds great for finding new apps that you might like, but security researchers say the feature uses a tracking mechanism that logs every single tap you make in the App Store, with no way to opt out.
This means Apple might record all your search queries, every app page you visit, and even how fast you type. If you happen to use an iPhone, Apple could be collecting this data right now.