Steganography. Steganography is the art of concealing data within another data/medium. For example, data can be hidden within a picture file. The overt file contains the secret message, whereas the covert file contains the covert message.
Image files, for example, use steganography in practically every form of file you can think of. A few pixels in the image have been shifted, and each one symbolises an alphabet letter. Even when searching carefully for the changes, an outsider may miss them.
Although steganography can safeguard data by concealing it, utilising it alone may not provide complete protection. The same is true for plain encryption. Using both strategies, however, will result in'security in depth.'
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