You can setup two-factor authentication for your account. 

Enabling 2FA:

Step 1: 

Go to your Profile - Basic Information and choose Enable 2-Factor Autorization. 

Step 2:

You will see that window. You need to download a Google Authenticator from App Store or Google Play.

Step 3: 

In Google Authenticator click on plus icon and choose 'Scan QR code option'. You will see your code for authentication in Google Authenticator.

Step 4:

Enter code from the app to the box and click on 'Enable 2FA'

Step 5:

Thats it. 2FA is successfully activated.