"jhead"

My latest column explores a tool called "jhead". Here is the excerpt.
"Smartphones are feature packed and owned by nearly everyone in developed countries. We cannot get by with our daily lifes without them. They provide us with a pocket sized gadget to surf the World Wide Web, direct us to where we want to go via the built-in Global Positioning System (GPS)and even permit us to take videos as well as photographs on the go. The caveat of this device is that it records a lot of sensitive data about its owner by default."