This is where your own information is stored. To access your Settings, click on the top-right corner where your avatar is located and select Personal Settings. Here you can edit and update your General and Security Settings.
This is where you complete your email profile by adding a profile picture and updating your Personal and Work Information.
Click Save once you are complete.
This where you can add a security question. The security question is highly recommended to help you sign in when you've forgotten your password without the need to reset it.
Click the Security tab (as seen in the above image) in your Personal Settings.
Select a Hint Question from the drop-down and then provide the Hint Answer and Click Done.