can I block access to My Verizon?

I have a family plan, and my kids each have a Vortex. Is there any way I can block access to My Verizon??

why do you want to block them? For the account users they will only be able to see their minutes and text messages, and data usage.

They will not be able to change anything since they are not the account owners. They will not be able to see any expanded billing info either. so why block it?