"This guide summarizes leading practices and technical guidance for securing networks from wireless threats and for securely implementing wireless access to networks. This document is specifically focused on the wireless technologies commonly referred to as 'Wi-Fi' as defined in the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family. This guide does not include commercial mobile networks (e.g., 3GPP, LTE). The recommendations in this guide address wireless threats that are universal to all networks and describe security controls that can work together to mitigate these threats. Wireless capabilities are widely available, even on networks that are not intentionally providing these services. Wi-Fi signals may infiltrate buildings from commercial providers, adjacent buildings and businesses, and other publicly available services. Authorized and unauthorized WiFi services can be used to gain unauthorized access to networks that are otherwise strongly secured. Due to the pervasive nature of Wi-Fi, it is important to consider the risks associated with these technologies and to examine potential impacts to confidentiality, availability, and integrity when conducting risk and threat analyses."
Computer Emergency Response Team: http://www.us-cert.gov/