Fraudsters are spreading a Facebook UnfriendAlert app that notifies users whenever someone removes them from the Facebook friend list. In reality it collects credentials to monitor who visits their profile and who unfriended them. Users have to activate unfriends monitoring and alert service by providing their Facebook credentials. Once the victim submits his login credentials the app will send them to the website yougotunfriended.com Malwarebytes researchers discovered it by analyzing the traffic with Wireshark.”]
Source: http://securityaffairs.co/wordpress/37603/cyber-crime/facebook-unfriendalert-app.html