Security is one of the most important and complex elements of wireless networks. The ability of a hacker to monitor traffic, gain unauthorized access to valuable resources, and deny the service of a wireless network are issues that you must consider. Through the use of effective encryption and authentication, it's possible to significantly minimize threats. Keep in mind, however, that the necessary level of security depends on requirements. An acceptable level of security for a home application is much lower than what's needed for an enterprise.