BeyondTrust Remote Support includes two-factor authentication. You can test out the capability by enabling it in your trial account.
To do so, log into the administrative interface with your trial credentials: https://rstrial.beyondtrust.com/login.
Scroll down to the bottom of the My Account page and activate two-factor authentication.
Then scan the QR code with your authentication app.
Once two-factor authentication is enabled, you will be prompted to enter the authentication code when you log into the BeyondTrust Representative Console.