According to the experts, Russian spies hide messages in ordinary pictures and post them on public websites. Many people are saying that terrorist organizations hide data inside adult videos. That's what the fancy fellows call steganography. Any of the billions of images and videos on the Internet may be hiding secrets.
This picture of the Mona Lisa contains a hidden treasure.
HideInSight does not encrypt data. There's no password or key or secret knock. The hidden files are really and truly in plain sight. A robot or android or cyborg can scan the pixels of an image and extract the size, name, and contents of a hidden file. Thus, the current version of HideInSight is not intended for use by professional spies from first world nations.
After inserting a file, do not edit the image. Any change to the pixels may destroy the hidden data. Do not change the type to JPEG or GIF. Only lossless formats will preserve the hidden data. You may, however, change the filename as often as you like.