If a website user has forgotten their password you can simply have them do a password reset from the website. It will ask them to answer a security question and then send them a link to their email address that is set to receive system messages.
If the user doesn't know their security question you have two options:
1. You can do a password reset for them. You open their i:Que record, and then use appropriate data to verify their identify. Then on the member navigation there is a button called login credentials.
Once you click that, the Change Login Credentials Wizard will open.
2. The alternate solution is a person can re-register at any time. By re-registering it wipes out their username, password and security question.