| 摘要 |
According to one aspect of the invention there is provided a method, comprising (a) maintaining a collection of voice signatures, at least a subset of which is organized to form a list of voice signatures, each belonging to a disqualified candidate; (b) obtaining a voice sample for a candidate; (c) comparing the voice sample with the voice signatures in the list; and (d) if the voice sample matches a signature in the list, then returning a status of disqualified for the candidate. According to another aspect of the invention there is provided a method, comprising receiving a request form a merchant to perform a fraud detection operation in connection with a credit card transaction by a consumer; responsive to the request, collecting a voice sample from the consumer; comparing the collected voice sample with voice signatures of known fraudsters; and notifying the merchant of a result of the comparing.
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