What #Facebook knows about you - Axios
▻https://www.axios.com/facebook-personal-data-scope-suer-privacy-de15c860-9153-45b6-95e8-ddac8cd47c3
Following you outside Facebook : Facebook sees you less thoroughly outside its own digital turf, but it still sees a lot. This data comes from two places: partner services and third-party information brokers.
Facebook has tools that partner websites use to integrate with Facebook, including the inclusion of “Like” and “Share” buttons, as well as a tracking cookie known as Facebook Pixel.
Thanks to an inquiry from Britain’s Parliament, we have a sense of how prevalent these methods are. According to Facebook, between April 9 and April 16 of 2018 there were 2.2 million Facebook Pixels, 8.4 million pages with a Like button and 931,000 pages with a button to Share on Facebook.
Facebook knows your location, even if you haven’t directly given it permission to access your phone’s GPS, by tracking the IP address of the phones, computers and other devices you use to access its servers.
Facebook also reserves the right to enhance its data trove by adding information from outside providers, though it has ended one program that mixed Facebook and third-party data for advertisers. From its policy page: “We also receive information about your online and offline actions and purchases from third-party data providers who have the rights to provide us with your information."
