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Over the last three years, mobile handsets have evolved from voice based services to multimedia terminals that is gradually leading towards a new era of consumer entertainment, fostered by mobile communications and consumer networks. The need for mobile digital rights management solutions is thus intensified in order to safeguard mobile media content. Various types of content protection solutions have been proposed. We investigate the challenge and state-of-the-art development of mobile multimedia content protection, describe scalable security tools that can support various kinds of scalability to provide adequate QoS for heterogeneous consumer networks, and discuss the applications for mobile consumer multimedia communications.