Network and transport level security; Network edge security controls: firewalls, packet filters, application gateways; Wireless and mobile network security: risks of wireless insecurity, wireless vulnerabilities and intrusion detection, WLAN and WMAN MAC layer security technologies, key management mechanisms and protocols, security in ad hoc, sensor, mesh and personal communication  networks; Security of Internet protocols: routing security, naming, network management,  signaling security, transport layer security; Network security policies: specification, implementation, deployment and management; Security of P2P and overlay/middleware  systems; Security for multiple domains, large-scale systems and critical infrastructures; Applications and high level services security: Web-based applications and services, VoIP, multimedia streaming services, VoD and IPTV, collaborative applications (conferencing), electronic commerce and eBusiness,  eVoting, grid computing, security of eGovernment; Intellectual property protection: digital rights management, licensing, metering, watermarking, information hiding, implementations; Security services integration in complex architectures; Tradeoffs between security and efficiency, usability, reliability and cost.