Rick works as a Computer Forensic Investigator for BlueWells Inc. He has been informed that

some confidential information is being leaked out by an employee of the company. Rick suspects
that someone is sending the information through email. He checks the emails sent by some
employees to other networks. Rick finds out that Sam, an employee of the Sales department, is
continuously sending text files that contain special symbols, graphics, and signs. Rick suspects
that Sam is using the Steganography technique to send data in a disguised form. Which of the
following techniques is Sam using?
Each correct answer represents a part of the solution. Choose all that apply.

A.
Technical steganography

B.
Perceptual masking

C.
Linguistic steganography

D.
Text Semagrams

Explanation: