You can clear the answers for a particular user’s security questions. For example, you might do this if the user forgot the answers, or if the security of the answers was compromised in some way. After answers are cleared, the user must provide new answers in order to use security questions for self-service troubleshooting.
Before you begin
Make sure that the user configured security questions with answers.
In the Security Console, go to the Home page.
Use Quick Search to find the user.
Select the user you want to edit.
Under User Profile, click Edit User.
Under Account Information, select the checkbox for Clear user answers to security questions.