With Femtocell popularities and deployments on the rise, a number of Femtocell security breaches have been reported. This is a result of pre-standards Femtocells versions that did not conform to or implement the published standards as a result of lack of understanding of basic security principles. A considerable amount of effort has been devoted, both in industry forums and standards developing organizations, toward creating technical specifications for the architecture, operation, and security of the Femtocells. Security remains on the minds of operators as the traditionally closed operator...