Emc IP Holding Company LLC

Triinu Magi

Harel Efraim

Ayelet Biger Levin

A technique identifies risky transactions by mapping raw user location data to a particular cell in a fixed grid. Along these lines, when a user initiates a transaction with a service provider over a mobile device, the service provider collects raw location data such as a latitude and longitude for the user and transmits the location data to an adaptive authentication server. The adaptive authentication server then accesses a fixed set of geographical areas overlaid on a map of the Earth. The adaptive authentication server finds a particular geographical area which contains the latitude and longitude for the user. The adaptive authentication server also obtains information in connection with previous transactions in the particular geographical area using the identifier of the particular geographical area to obtain the information. Based on this information, the adaptive authentication server determines the riskiness of the particular geographical area. Based on the riskiness, the adaptive authentication server assigns a risk score to the transaction.

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Triinu Magi