Abstract: A method, computer system, and computer program product for on-demand risk assessment in on-line transactions comprises: computing, by a machine intelligence application, a risk score for the individual; providing the risk score to a cache; and responsive to receiving new data regarding the individual, calculating a new risk score for the individual and replacing the risk score in the cache with the new score.

Abstract: A method, computer system, and computer program product for on-demand risk assessment in on-line transactions comprises: computing, by a machine intelligence application, a risk score for the individual; providing the risk score to a cache; and responsive to receiving new data regarding the individual, calculating a new risk score for the individual and replacing the risk score in the cache with the new score.

Abstract: Systems and methods are provided that enable authentication of transaction coordination messages sent via insecure connections. Also provided are systems and methods for controlling transaction coordination and recovery. In many embodiments, there is an exchange between a coordinator and a sub-coordinator, such that the coordinator provides the sub-coordinator with a coordinator token, and the sub-coordinator provides the coordinator with a sub-coordinator token. The coordinator and sub-coordinator tokens are used to authenticate transaction coordination messages sent over one or more insecure connections between the coordinator and the sub-coordinator.

Abstract: Systems and methods are provided that enable authentication of transaction coordination messages sent via insecure connections. Also provided are systems and methods for controlling transaction coordination and recovery. In many embodiments, there is an exchange between a coordinator and a sub-coordinator, such that the coordinator provides the sub-coordinator with a coordinator token, and the sub-coordinator provides the coordinator with a sub-coordinator token. The coordinator and sub-coordinator tokens are used to authenticate transaction coordination messages sent over one or more insecure connections between the coordinator and the sub-coordinator.

Abstract: Apparatus and method for performing an application-defined operation on data as part of a system-defined operation on the data. The apparatus and method are embodied in a distributed transaction processing system in which processes running on component systems which may be heterogeneous interact according to the client-server model. In the apparatus and method, a type is associated with the data and application-defined operations which are part of certain system-defined operations are defined for each type. The system-defined operations which the application-defined operations are part of include allocation, reallocation, and deallocation of buffers and sending buffers between clients and servers using remote procedure calls. In the allocation and reallocation operations, the application-defined operation is initialization; in the deallocation operation, it is uninitialization.