Abstract: In various situations, it may be desirable to know the location of a device requesting services, and to confirm that the device is at an actual location that coincides with the purported location of the device. In order to verify that a device is actually at its purported location, the device may be instructed to perform DNS (domain name system) lookups to resolve a set of given network domain names and to thereby find network addresses that are associated with the domain names Geolocation databases are then consulted to determine the locations of the hosts associated with the network addresses. These locations are checked for consistency with the purported location of the device, and services may be denied if inconsistencies are found.

Abstract: In some examples, methods and systems may process one or more payment transactions between a merchant and a buyer by registering a communication device as an authorization instrument to the payment transaction. To this end, the method includes detecting at least one transaction activity associated with a payment system, establishing a communication channel between the POS terminal an RF communication device in proximity to the POS terminal.

Abstract: A method for monitoring a mobile radio interface on a mobile terminal, the mobile terminal having a baseband and an application processor, includes: executing an operating system on the application processor; and executing a virtual modem on the application processor, which exclusively performs the data exchange between the operating system and the baseband and provides the functionality of the baseband in order thereby to gain access to data and in order thereby to filter out unauthorized data.