If a child forgets their secret word, the parent can sign in to retrieve it from the Profiles and settings window. If a parent forgets the secret word, click the Forgot secret word link. IXL will reset it and send the parent an email with the information necessary to proceed.
Setting a unique secret word for each parent and child account can help ensure children are signed in to the correct account. With a secret word, you can also prevent children from accessing the membership settings available in a parent account or from uncovering a sibling's awards. If you decide to use the secret word feature, you will need to enter it every time you sign in.