What do Apple’s new privacy settings mean for you?

The change will mean a new pop-up notification in some apps seeking permission to collect data that Apple believes could be used to track people’s browsing habits across third-party apps.

Apple Inc on Monday will begin rolling out an update of its iOS operating system with new privacy controls designed to limit digital advertisers from tracking iPhone users. For Apple’s more than one billion iPhone users, the change will mean a new pop-up notification in some apps seeking their permission to collect data that Apple believes could be used to track their browsing habits across third-party apps and websites. For businesses, the rules could bring seismic changes to the nearly $100bn mobile advertising market if most iPhone users decline to allow data collection, though the exact impact remains a question, according to industry experts.