Patent attributes
A method of authenticating an applicant. A history is obtained of transactions performed on an account held by the applicant and for which the applicant has been previously authenticated. The transaction history includes information about each transaction. The applicant is asked one or more questions relating to the information in the history. Answers to the one or more questions are received from the applicant, and a decision is made based on the received answers and the transaction history whether the applicant is authenticated. The applicant may be applying for enrollment in a service, and enrollment may be accepted or declined based on whether the applicant is authenticated. The account may relate to a payment instrument, and the authentication may be performed by an entity other than the issuer of the payment instrument.
