Hiding files within JPG
You can always use an encryption software or password protection on zip/rar to protect your private files from prying eyes; but if someone tries to open them he would know that something is hidden there because of the protection you put up. Now consider a simple JPG image and your secret files are hidden inside one image. If someone opens the file, he would see that one image, but when you open it you can pull out any file from it, now how cool and protected would that be.
Learn to hide files within JPG @ The tech tray
