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Security Planes represent the types of activities that occur on a network. Each Security Plane is applied to every Security Layer to yield nine security Perspectives (3 x 3) Each security perspective has unique vulnerabilities and threats Three Security Planes 1 - End-User Security Plane: Access and use of the network by the customers for various purposes: Basic connectivity/transport Value-added services (VPN, VoIP, etc.) Access to network-based applications (e.g., email) 2 - Control/Signaling Security Plane: Activities that enable efficient functioning of the network Machine-to-machine communications 3 - Management Security Plane: The management and provisioning of network elements, services and applications Support of the FCAPS functions |