A person who pretends to be someone else is

• A. A Social Engineer
• B. A Hacker
• C. A Cryptanalyst
• D. An Impostor

Answer: (D)

Impersonation is when someone pretends to be another person in order to fool others or gain access. In security terms, a person who does this is an impostor. This directly matches the description of someone who pretends to be someone else, making impostor the most precise label. A social engineer is the attacker’s method or role, not the label for the person themselves; a hacker is a broad term for someone who breaks into systems, and a cryptanalyst focuses on breaking codes. An impostor, such as someone posing as a colleague or supervisor to extract passwords, captures the idea of the deception described.