I went out wardriving today <[URL]http://en.wikipedia.org/wiki/Wardriving>[/URL] Wardriving, for those that don't know, is getting a WiFi scanner and a GPS system and going for a drive. The iPhone 3G is a good utility for this as it has integrated WiFi and GPS capabilities. I used the WiFiFoFum app, set it to scan every 3 seconds and then drove home from work. In the four mile journey home I logged nearly 300 unique WiFi access points. When I got home I extracted the KML file and threw it at Google Earth. The SSID is logged, mac address, WiFi channel, RSSI, and security. It's quite scary. I was quite shocked to find quite so many networks were logged as "Security: NONE". A picture of part of my journey: <[URL]http://www.flickr.com/photos/hayn0r/3424305925/sizes/o/>[/URL] There are so many that Google Earth has dimmed many of the pushpins, but each pin, including the dark ones, represents at LEAST one active WiFi network, whether hidden or otherwise. Points of note: (not displayed on image above) A local 'forces' (ahem) area has three hidden WiFi networks, all protected with WEP. So secure.