There is nothing to investigate, from the screenshot of the excel file I can deduce what has happened.
Someone put up a service/application/website which required facebook login. The user logged in with his facebook account. The service/app/website may request the email address to be part of the authentication information. The user is informed about this before when he accepts the service/app/website into his life. The provider of the service/app/website was dishonest and sold basically the login info for $5. How do I know? I have developed applications with facebook login.
Someone put up a service/application/website which required facebook login. The user logged in with his facebook account. The service/app/website may request the email address to be part of the authentication information. The user is informed about this before when he accepts the service/app/website into his life. The provider of the service/app/website was dishonest and sold basically the login info for $5. How do I know? I have developed applications with facebook login.