An authentication method includes receiving an initial user authentication factor; storing the initial authentication factor; receiving one or more user verification authentication factors; and authenticating the user when a verification authentication factor matches the initial authentication factor. A user authentication system includes a processor; and a memory storing instructions that, when executed by the processor, cause the system to: receive an initial user an initial authentication factor; store the initial user authentication factor; receive one or more user verification authentication factors; and authenticate the user when a verification authentication factor matches the initial authentication factor. A non-transitory computer readable medium containing program instructions that when executed, cause a computer to: receive an initial user an initial authentication factor; store the initial user authentication factor; receive one or more user verification authentication factors; and authenticate the user when a verification authentication factor matches the initial authentication factor.