System and method for detecting user fraud in automated teller machine transactions
First Claim
1. A system for detecting user fraud in connection with automated teller machine transactions, comprising:
- means for measuring at least one biometric value for a user;
means for comparing that value to a reference biometric value for that user;
means for predicting the type of transaction to be requested by said user;
means for comparing the predicted transaction with the transaction actually requested by said user; and
means for determining whether the user is valid, based upon the biometric value comparison and the result of comparing the predicted transaction with the actual transaction if said biometric value comparison is not conclusive.
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Abstract
A self-service automated teller system includes a fraud detection module which uses a biometric recognition technique, such as voice or fingerprint recognition, in combination with predictive technology. The biometric recognition test is normally decisive, but if this test produces a result which is close to a predetermined threshold, the predictive technology checks to determine whether the transaction is consistent with the user'"'"'s normal behavior before permitting the transaction to proceed. A suspicion count may also be included in the decision-making process, to determine whether or not the user has a previous record of suspicious transactions.
435 Citations
34 Claims
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1. A system for detecting user fraud in connection with automated teller machine transactions, comprising:
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means for measuring at least one biometric value for a user; means for comparing that value to a reference biometric value for that user; means for predicting the type of transaction to be requested by said user; means for comparing the predicted transaction with the transaction actually requested by said user; and means for determining whether the user is valid, based upon the biometric value comparison and the result of comparing the predicted transaction with the actual transaction if said biometric value comparison is not conclusive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A self-service system comprising:
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a user interface unit having user identification means; input means operable by a user for initiating a selected self-service transaction; biometric means for producing biometric output data relating to a user; storage means for storing biometric reference data relating to a plurality of authorized users of the system, said storage means being arranged to store data relating to previous transactions initiated by said authorized users; prediction means coupled to said identification means and arranged to predict the type of transaction to be requested by a given user on the basis of the stored data relating to previous transactions; and transaction authorization means coupled to said biometric means and to said prediction means and arranged to make a determination as to whether a transaction initiated by a user is to be permitted to proceed to completion, said determination being made on the basis of a comparison between said biometric output data and said biometric reference data for the relevant user, and, if said biometric comparison is not conclusive on the basis of a comparison between the transaction predicted for, and the transaction actually requested by, the relevant user. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for detecting user fraud in connection with automated teller machine transactions, comprising the following steps:
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(a) measuring at least one biometric value for a user; (b) comparing that value to a reference biometric value for that user; (c) predicting the type of transaction to be requested by said user; (d) comparing the predicted transaction with the transaction actually requested by said user; and (e) determining whether the user is valid, based upon the biometric value comparison and the result of comparing the predicted transaction with the actual transaction if said biometric value comparison is not conclusive. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification