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Cisco NAC Appliance: Enforcing Host Security with Clean Access by Alok Agrawal, Chad Sullivan - CCIE No. 6493, Jerry Lin - CCIE No. 6469, Jamey Heary - CCIE No. 7680

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Chapter 1. The Weakest Link: Internal Network Security

This chapter covers the following topics:

The rapid spread of e-commerce, e-learning, and e-business coupled with the growing reliance on information technology (IT) as a business enabler brings new information security challenges to organizations, including the following:

  • Increased vulnerability-based attacks, which can cause large-scale business disruptions and directly result in productivity loss.
  • Diminished security boundaries resulting in an increase in unauthorized access and internal attacks. The lack ...

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