Last year I wrote about geotagging photographs. Geotagging can be a major addition to digital photographs. In short, geotagging is the process of adding geographical identification to digital photographs, video, websites, or even RSS feeds. The information added typically consists of latitude and longitude coordinates, but it can also include altitude, bearing, accuracy data, and place names. However, the New York Times reports that security experts and privacy advocates have begun warning consumers about the potential dangers of geotags, which are embedded in photos and videos taken with GPS-equipped smartphones and digital cameras.
By looking at geotags of uploaded photos, 'you can easily find out where people live, what kind of things they have in their house and also when they are going to be away,' says one security expert. Because the location data is not visible to the casual viewer, the concern is that many people may not realize it is there; and they could be compromising their privacy, if not their safety, when they post geotagged media online."
You can read more at http://www.nytimes.com/2010/08/12/technology/personaltech/12basics.html?_r=4
