Instructions
Click Settings in the navigation menu.

Change password
If you click the Change Password button in the Security section, you will be presented with a panel where you can set a new password.

Confirm your new password by clicking Change Password.
Two-factor authentication
Two-factor authentication adds an extra layer of security in the event your account gets compromised. When logging in, after entering your e-mail address and password, you’ll be asked to enter a verification code sent to your smart device. To activate this feature, click the Two-factor auth button in the Security section. A panel opens where you can setup two-factor authentication.

Click the Configure authenticator app button.

Follow the instructions that appear on your screen.
Finally, click Verify to finish setting up two-factor authentication.