Abstract: The security of wireless WANs(world area network) has been a source of concern for businesses and individuals who are aware of its advantages due to its flexibility. With the increase in the use of wireless WANs for enterprises and homes, where information assets are shared continually, security is of the essence. With the increase in e-commerce and e-services, there is the risk of identity and credit card theft. Encryption is seen as a major tool in the line of defense of wireless WANs. This article discusses the various security protocols used in wireless WANs and how effective they are in keeping wireless WANs secure. The risks of using these protocols are outlined and recommendations for securing wireless WANs are reviewed.