Public Wi-Fi access is a ubiquitous part of networked life in the modern internet. Wi-Fi hotspots provide fast and convenient internet access for the general public at locations such as coffee shops, libraries and community centres, transportation hubs, and private commercial/social spaces. However public Wi-Fi also provides cyber criminals with a number of convenient attack routes which have been well documented by security researchers.

http://www.midlandsfraudforum.co.uk:80/resources/Documents/Alerts/Public%20Wifi.pdf