Check whether your Facebook data was stolen by Cambridge Analytica.
Login to your Facebook account.
Go to help Help & Support ->Help Center
Then on the search box Type “Cambride” or ” Cambridge Analytica” you will get the serch result as following:
” How can i tell if my information was shared with Cambridge Analytica?”
Click on the above option. Then you can see the result. If you are lucky enough you will get the message