In order to setup a Multi-Factor Authentication via the Virgin Pulse website, you will need to have a cell phone number with a +1 area code (including the US and Canada), that has been verified on file with us in order to authenticate via SMS. To authenticate via email, a code will be sent to your Virgin Pulse account registered email address.
If you skip this step you can add your cell phone number in My Profile > Account Settings. Once you enter your number, you will be sent a code via SMS that can be entered and will verify your number.
If you provide a valid phone number, you will then be prompted to verify your cell phone number.
Once you have a verified phone number, it can be used to request a security code the next time you see an MFA pop-up window.