Facebook (FB) is rolling out Marketplace advertising to businesses and individuals just as Apple is making moves that could give it a hard time growing its advertising business. Apple is introducing new privacy tools in its Safari browser designed to limit the amount of personal data social media companies can collect from people who use devices such as iPhones and iPads. For their lucrative, data-driven, targeted advertising businesses, companies such as Facebook and Alphabet’s (GOOGL) Google rely on personal data they collect from people who use their services. Therefore, limiting these social media companies’ ability to collect data from iPhone users through the Safari browser, for instance, could starve them of crucial data they need to deliver more relevant advertising messages.
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