Network security and control is an important aspect of an IS audit. In this chapter, we will discuss various components of the network, the OSI layer, and other security aspects of networking. We will also discuss and learn about the functions of each type of firewall. This chapter also deals with the Virtual Private Network (VPN) and Voice over Internet Protocol (VoIP).
The following topics will be covered in this chapter:
- Network and endpoint devices
- Firewall types and implementation
- VPN
- VoIP
- Wireless networks
- Email security
By the end of this chapter, you will be able to understand and evaluate various risks and controls related to networking.
