Implement a checkbox/toggle under Portal Settings (or any other method) that allows a company to turn on 2-factor authentication for all its users through Absorb LMS. For example, when a user signs in with email and password, it will prompt them to enter a code that was sent to their email before granting them access to the LMS portal.
My company is hoping to have this added as well! We are wanting to offer training to our external partner companies through Absorb LMS, and they wouldn't have SSO set up. 2-factor or multi-factor authentication would be an added layer of security for their accounts.