This is according to a blog post by Facebook’s Chief Technology Officer, Mike Schroepfer where in the post about restricting data access, he writes at the end that, “In total, we believe the Facebook information of up to 87 million people — mostly in the US — may have been improperly shared with Cambridge Analytica.”
Based on Facebook’s findings, the majority of the users affected, over 70 million, are from the US. Next is the Philippines at roughly 1.1 million, followed by Indonesia and the UK at a little over 1 million. Schroepfer also notes that starting from the 9th of April, Facebook users will be able to see if their data was exposed to Cambridge Analytica.
“Finally, starting on Monday, April 9, we’ll show people a link at the top of their News Feed so they can see what apps they use — and the information they have shared with those apps. People will also be able to remove apps that they no longer want. As part of this process we will also tell people if their information may have been improperly shared with Cambridge Analytica.”