Facebook expands advertising transparency
In January 2019, Facebook announced that as of February 28 the site would add more information to that displayed when users click on the "Why am I seeing this?" button that appears next to ads on the service. Along with the brand that paid for the ad, some of the biographical details they'd targeted, and whether they'd uploaded the user's contact information, Facebook would also show when the contact information was uploaded, whether it was by the brand or one of their partners, and when access was shared. Facebook said the company's goal is to keep improving users' understanding of how advertisers use their information.
https://techcrunch.com/2019/02/06/why-am-i-seeing-this-ad/
Writer: Josh Constine
Publication: TechCrunch