Computer Hacking Forensic Investigator (CHFI v10) — Question 347

Harold is a computer forensics investigator working for a consulting firm out of Atlanta Georgia. Harold is called upon to help with a corporate espionage case in
Miami Florida. Harold assists in the investigation by pulling all the data from the computers allegedly used in the illegal activities. He finds that two suspects in the company where stealing sensitive corporate information and selling it to competing companies. From the email and instant messenger logs recovered, Harold has discovered that the two employees notified the buyers by writing symbols on the back of specific stop signs. This way, the buyers knew when and where to meet with the alleged suspects to buy the stolen material. What type of steganography did these two suspects use?

Answer options

• A. Text semagram
• B. Visual semagram
• C. Grill cipher
• D. Visual cipher

Correct answer: B

Explanation

The correct answer is B, Visual semagram, as it refers to the use of visible symbols or signs to convey information covertly. The suspects used symbols on stop signs, which qualifies as a visual method of steganography. Options A, C, and D do not fit the scenario, as they involve different methods of concealing information that are not related to visual symbols on physical objects.