We want this as well. Optionally we could block backstage on some machines that are sensitive to this. https://screenconnect.product.connectwise.com/communities/1/topics/3944-disable-backstage-per-machine?comment_form_activate=true

We are requesting this as well. We require all users to connect with 2FA when logging into any server/machine, backstage does not prompt the user for it.

Forcing 2FA on connecting to backstage would solve this.  https://screenconnect.product.connectwise.com/communities/1/topics/3978-option-to-require-additional-2fa-for-backstage-or-running-commands