| 摘要 |
The invention provides a system and method of authenticating a user of an account at a service system using an authentication system is provided. For the method, it comprises: after the user successfully completes an initial sign-on procedure with the service system, providing an authentication question to the user from the authentication system; receivin g and analyzing an answer from the user to the question; if the answer provides a sufficient level of confidence in the authenticity of the user, then providing a sign-on password to the user and to the service system for use for the user to submit the password to the service system to access the account.
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