How does the Challenge/Response security system affect my user accounts?
If you set up security questions for your master account, all sub-users will be required to configure their own questions within 7 days or they will be locked from the areas the master account has chosen to protect. The sub-users' questions and answers do not have to be the same as the master account's.
If you choose not to set up security questions on your master account, sub-users will not have the option to enable them either.