Steganography

What is Steganography

Steganography is defined by Merriam-Webster as the art or practice of concealing a message, image, or file.

Different Types of Steganography

There are many different types of Steganography. However, they all share the same goal of hiding the presence of some particular piece of data.

Micro Dots

Micro dots are used to shrink the physical size of a document or image. This technique was used heavily during World War I and World War II. A person wanting to send data secretly to another person would need to use something called a Micro Dot Camera to take a picture of thing they want to send. Once they have the picture the Micro Dot would then either be applied to a document and mailed or just attached to a carrier pigeon. Of course you would want to make sure the document has some information on it that someone could easily read, otherwise they might suspect you are trying to hide something from them.