In there, you’ll find five very important settings that give you extra layers of security.
1. Use Login Alerts
If someone uses your Facebook ID and password to log in to your account without your permission, wouldn't you like to know? When Login Alerts is turned on, you will be immediately notified if someone tries to log in to your account from a new place.
To turn on these alerts, log in to Facebook and open your Settings menu. Click on Security, Login Alerts, and Edit. Select Get notifications and Email login alerts, then save your changes.