If you have the need to secure your photos from unwanted use or distribution, take a gander at PhotoScrambler.
PhotoScrambler is an app available for both Windows Phone and Windows 8 devices that will encode/decode your JPEG or PNG photos. Images are stored as any other image file but all that is seen is a static image. PhotoScrambler takes a little time to get accustomed to but once you get the hang of things, the apps does have a bit of appeal.
