One-word substitution (identity deception): Identify the correct term for a person who pretends to be someone he is not in order to deceive others. Context: The word is commonly used in security, fraud, and social engineering scenarios. Instruction: Select the best single-word substitute from the options provided.

Given data

• Definition needed: A person pretending to be somebody he is not.
• Options: Magician, Rogue, Liar, Imposter.

Concept / Approach
An imposter (also spelled ‘‘impostor’’) specifically means someone who assumes a false identity. Other options are broader or different in sense.

Option-by-option analysis
Magician — performs tricks/illusions as entertainment, not identity fraud. ❌Rogue — a dishonest or unprincipled person; not necessarily pretending to be someone else. ❌Liar — tells lies; does not inherently involve taking a false identity. ❌Imposter — one who pretends to be another person. ✅

Examples
‘‘The cybercriminal was an imposter posing as the company’s CFO.’’

Common pitfalls

• Equating any dishonest person with an imposter; identity assumption is the key feature.

Final Answer
Imposter