A security analyst discovered data such as images and word documents hidden within different types of files.Which of the following cryptographic concepts describes what was discovered?

A.
Symmetric encryption

B.
Non-repudiation

C.
Steganography

D.
Hashing

Explanation:
Steganography is the process of concealing a file, message, image, or video within another file, message,
image, or video.
Note: The advantage of steganography over cryptography alone is that the intended secret message does not
attract attention to itself as an object of scrutiny. Plainly visible encrypted messages, no matter how
unbreakable will arouse interest, and may in themselves be incriminating in countries where encryption is
illegal. Thus, whereas cryptography is the practice of protecting the contents of a message alone,
steganography is concerned with concealing the fact that a secret message is being sent, as well as concealing
the contents of the message.