V3DA hub authorization scheme is based on a nested top down model.
Much like V3DA hub validates the school (via licence/gov id/business reg photocopy), the school authorizes it's instructors.
You as the instructor authorizes your students as you know them the best.
On your dashboard, you will see a list of students. You can verify/un-verify them.
Once unverified, a student will NOT be able to view their dashboard.
The same applies for unverified instructors.