Choosing this WiFi “access point” could be dangerous.
If you travel with your laptop computer, and you ask it to display available wireless networks, you may see Free Public WiFi as an available network. Don’t use this Free Public WiFi — especially if you see the phrase “Unsecured computer-to-computer network” associated with it. Microsoft also calls this an AdHoc network; it’s often just someone nearby with a PC with wireless card. It may be an attempt by someone to access your PC’s files, or it may just be someone who doesn’t realize that his PC is inviting anyone to connect to his.
You can prevent this potentially dangerous temptation from appearing. Read how: http://www.wlanbook.com/free-public-wifi-ssid/
More information on Free Public WiFi: http://news.cnet.com/8301-13554_3-9941355-33.html