Abstract: A payment processing system includes a server that processes a request for a transaction between a customer and a merchant. The customer is associated with a customer profile defining a customer security level that is one of a plurality of customer security levels. The merchant is associated with a merchant profile defining a merchant security level that is one of a plurality of merchant security levels. A risk service determines a risk for the request based on transaction data of the purchase transaction request, the customer profile, and the merchant profile. The risk service determines the risk by operating at a risk assessment level that is one of a plurality of risk assessment levels at which the risk service operates depending on the customer and the merchant security level defined by the customer and the merchant profile. The risk service generates a fraud warning based on a result.

Abstract: Systems and methods for fraud monitoring in a payment service are disclosed. An exemplary system includes a first server being located at a first locale and routing a first series of transaction requests. The system includes a second server being located at a second locale and routing a second series of transaction requests. The transactions requests may or may not be associated with a single payment service user account. The system includes a distributed cache storing a set of transaction details of the two series of transaction requests. The system includes a risk service having access to the set of transaction details from the distributed cache. The risk service generates a fraud warning based on a result of a comparison of at least one transaction detail in the set of transaction details and at least one transaction detail of a new transaction request received by the first server.

Abstract: A service request having an external format is received by a server. The service request is translated from the external channel format into a common internal system format using a discrete adaptor for that external channel format. The service request is then applied to a service lookup table to lookup a service address. The service lookup table is updated by adding an entry to the lookup up table. When in the internal system format, the header of the request uses an identical nomenclature as the service lookup table to identify the requested service. At least part of the application of the service request to the lookup table and the update of the service lookup table can occur simultaneously.

Abstract: Systems and methods for fraud monitoring in a payment service are disclosed. An exemplary system includes a first server being located at a first locale and routing a first series of transaction requests. The system includes a second server being located at a second locale and routing a second series of transaction requests. The transactions requests may or may not be associated with a single payment service user account. The system includes a distributed cache storing a set of transaction details of the two series of transaction requests. The system includes a risk service having access to the set of transaction details from the distributed cache. The risk service generates a fraud warning based on a result of a comparison of at least one transaction detail in the set of transaction details and at least one transaction detail of a new transaction request received by the first server.