Crypstagram is a new photo-sharing service that's ideal for those who fear the prying eyes of the world's spy agencies. The service allows you to send photos to friends with secret messages. Said secret messages is actually embedded into your message, and the image and accompanying message can only be seen once the correct password has been entered.
Crypstagram doesn't just drop your message onto your picture and call it a day, though. The embedded image is incorporated into your picture, a process which morphs the original image into something else entirely. The image can be downloaded or shared via social media, but it can only be viewed (along with its accompanying message) with the right password.