Abstract: A method and system for correlating cardholder identity attributes on a payment card interchange network using a computer device coupled to a database are provided. The method includes storing at a central store, personally identifiable information from an issuer for a plurality of payment card cardholders, the personally identifiable information encrypted to prevent payment card transaction data from being associated with the personally identifiable information, receiving, from a merchant, personally identifiable information during a payment card transaction, encrypting the received personally identifiable information, and comparing the encrypted stored personally identifiable information to the encrypted received personally identifiable information to determine a risk of fraud during the payment card transaction.

Abstract: A method and system for evaluating a risk of fraud in a payment card transaction using a computer device coupled to a database are provided. The method includes receiving payment card transaction messages relating to a payment card account wherein the payment card transaction messages relate to interactions with a cardholder, an issuer of the payment card account, or an agent thereof. The method further includes receiving payment card account reputation messages that include historical data relating to the trustworthiness of the payment card account, comparing at least one data element in each payment card transaction messages to at least one data element in at least one of: the payment card reputation message and prior transaction history, and determining at least one of a risk of fraud of the transaction and a trustworthiness of the payment card account based on the comparison.

Abstract: A computer-implemented method for applying payment services to a payment transaction over a first payment network using a payment services computer system hosted on a second payment network is provided. The method includes receiving a service request at the payment services computer system from a requestor. The service request has a first format that is readable by the second payment network. The method includes determining, at the payment services computer system, the payment services the service request is registered to receive. The method includes processing the service request by applying the registered payment services to the service request. The method includes generating, at the payment services computer system, a services response. The services response is generated based on the registered payment services and the payment transaction data. The method additionally includes transmitting the services response to at least one of the cardholder and the requestor.

Abstract: Facilitating the solicitation of expert advice from trusted reviewers using a system that maintains a registry of product reviewers with areas of expertise. The system can identify reviewers that have an area of expertise relating to a consumer's purchase advice request (PAR) and are directly or indirectly connected to the consumer's social network. The system can calculate the trust level of the reviewers based on the relevance of each reviewer's area of expertise to the PAR and the degree of social separation between each reviewer and the consumer. The system provides the consumer with a ranked list of reviewers to answer the PAR and can forward the PAR to the reviewer selected by the consumer. In addition, the system can also complete the purchase of product/service recommended by the reviewer pursuant to the PAR on behalf of the consumer.