Abstract: Methods and server systems for computing fraud risk scores for various merchants associated with an acquirer described herein. The method performed by a server system includes accessing merchant-related transaction data including merchant-related transaction indicators associated with a merchant from a transaction database. Method includes generating a merchant-related transaction features based on the merchant-related indicators. Method includes generating via risk prediction models, for a payment transaction with the merchant, merchant health and compliance risk scores, merchant terminal risk scores, merchant chargeback risk scores, and merchant activity risk scores based on the merchant-related transaction features. Method includes facilitating transmission of a notification message to an acquirer server associated with the merchant.

Abstract: Methods for centralized access control for cloud relational database management system resources are performed by systems and devices. The methods utilize a central policy storage, managed externally to database servers, which stores external policies for access to internal database resources at up to fine granularity. Database servers in the processing system each receive external access policies that correspond to users of the system by push or pull operations from the central policy storage, and store the external access policies in a cache of the database servers for databases. For resource access, access conditions are determined via policy engines of database servers based on an external access policy in the cache that corresponds to a user, responsive to a resource access request from a device of the user specifying the internal resource. Data associated with the resource is provided to the user based on the access condition being met.

Abstract: Methods for centralized access control for cloud relational database management system resources are performed by systems and devices. The methods utilize a central policy storage, managed externally to database servers, which stores external policies for access to internal database resources at up to fine granularity. Database servers in the processing system each receive external access policies that correspond to users of the system by push or pull operations from the central policy storage, and store the external access policies in a cache of the database servers for databases. For resource access, access conditions are determined via policy engines of database servers based on an external access policy in the cache that corresponds to a user, responsive to a resource access request from a device of the user specifying the internal resource. Data associated with the resource is provided to the user based on the access condition being met.

Abstract: A method for managing, by an electronic device, content in an augmented reality (AR) system is provided. The method includes identifying a digital artefact that is used by a first application of an electronic device, executing and displaying an image capturing application to capture images, displaying the digital artefact on a captured image which includes an object of a real world where the digital artefact is displayed on or around the object, and, while the digital artefact is displayed, receiving an user input on at least one of the digital artefact or the object for performing an action associated with the digital artefact.

Abstract: Methods for database recovery for encrypted indexes are performed by systems and devices. A query with a decryption key is received from a client device, where the query modifies an encrypted index of a database using a secure enclave. When events requiring remedial actions for the database occur during the querying, some transactions of the query and later queries are deferred, and a remedial action is initiated that includes restarting the database. A determination of the remedial action being unsuccessful in recovering the encrypted index causes the action to be re-performed until another query having the decryption key is received whereupon the action is performed again to recover the encrypted index utilizing the decryption key. Deferred transactions are then performed with the decryption key. When a database restarts for access without secure enclaves, the encrypted index for the database is invalidated, and the remedial actions are otherwise completed or discarded.

Abstract: A method for managing, by an electronic device, content in an augmented reality (AR) system is provided. The method includes identifying a digital artefact that is used by a first application of an electronic device, executing and displaying an image capturing application to capture images, displaying the digital artefact on a captured image which includes an object of a real world where the digital artefact is displayed on or around the object, and, while the digital artefact is displayed, receiving an user input on at least one of the digital artefact or the object for performing an action associated with the digital artefact.

Abstract: A method of supporting N active, distributed HSRP gateways in a virtual Extensible local area network. The method includes: joining by HSRP active, HSRP standby, HSRP listen gateways a special virtual Extensible LAN tunnel endpoint address; advertising by HSRP active, HSRP standby, HSRP listen gateways its address; assigning priority to HSRP active, HSRP standby, HSRP listen gateways; determining the liveliness of the HSRP active gateway; and the HSRP active gateway sourcing Hello with HSRP VMAC in the inner layer 2 header, and the special virtual Extensible LAN tunnel endpoint address in the outer Layer 3 address; replying by the HSRP active gateway to a broadcast ARP to an HSRP Virtual IP address; forwarding packets destined to Virtual MAC by any of HSRP active, HSRP standby, HSRP listen gateways and replying by HSRP active, HSRP standby, HSRP listen gateways to a unicast ARP to an HSRP Virtual IP address.

Abstract: A method of supporting N active, distributed HSRP gateways in a virtual Extensible local area network. The method includes: joining by HSRP active, HSRP standby, HSRP listen gateways a special virtual Extensible LAN tunnel endpoint address; advertising by HSRP active, HSRP standby, HSRP listen gateways its address; assigning priority to HSRP active, HSRP standby, HSRP listen gateways; determining the liveliness of the HSRP active gateway; and the HSRP active gateway sourcing Hello with HSRP VMAC in the inner layer 2 header, and the special virtual Extensible LAN tunnel endpoint address in the outer Layer 3 address; replying by the HSRP active gateway to a broadcast ARP to an HSRP Virtual IP address; forwarding packets destined to Virtual MAC by any of HSRP active, HSRP standby, HSRP listen gateways and replying by HSRP active, HSRP standby, HSRP listen gateways to a unicast ARP to an HSRP Virtual IP address.