© 2005 Cisco Systems, Inc. All rights reserved.SND v Module Summary Applying an effective security policy is the most important step that an organization can do to protect itself. The security policy drives all activities undertaken to secure network resources to implement a defense-in-depth strategy. There are many way to attack networks, and many techniques for reducing vulnerabilities and determining and mitigating common network attacks. Knowing the methodologies used by hackers helps you develop an effective security policy. The PDIOO network life-cycle model provides a basis from which to build your network in a structured, planned, and modular fashion. A comprehensive security policy drives all activities undertaken to secure network resources. The Cisco Self-Defending Network strategy helps customers more effectively manage and mitigate the risks posed to their networked business systems and applications.

© 2005 Cisco Systems, Inc. All rights reserved.SND v2.01-2