Wifi TopHacker is a scanner that detects the security holes of any wifi HotSpot. It also launches a dummy attack, and provides security guidelines over the Wifi networks.
The purpose of this application is that people can understand how easy is to hack and crack any wifi. There are really network experts that can hack any wifi.
This is specially important for the WEP wifis, which definitively are insecure. WPA wifis are more secured but if you want to have a secured wifi network better if you know what the hackers can do.