Going forward, apps will be required to get permission from users to track them or access their device’s advertising identifier. But everybody does this now, right? Sort of. As it stands now, most privacy and data collection work in an opt-out fashion, meaning they alert the user the data is being collected and how it is used, but the user is responsible for updating any privacy settings, which no one does. Now, the user will have to explicitly choose to opt-in or agree to be tracked.