Which term describes the act of making information obscure or unintelligible to outsiders?

• A. Obfuscation
• B. Encryption
• C. Decryption
• D. Hashing

Answer: (A)

Obfuscation is about making information hard to understand for someone who isn’t meant to access it. In practice, this means turning code or data into something that looks confusing or nonsensical, so casual readers can’t easily grasp how it works or what it does. This is common in software to deter reverse engineering or copycat analysis, by renaming variables to meaningless strings, reordering logic, or inserting misleading constructs.

This differs from encryption, which deliberately scrambles data so that only someone with the right key can recover the original content; obfuscation isn’t primarily about enabling secure, reversible secrecy. Decryption is the process of reversing encryption to reveal plaintext. Hashing, on the other hand, produces a fixed-size digest that cannot be reversed to obtain the original input, and it’s used for integrity checks or authentication rather than hiding content. So when the goal is simply to make information harder to understand rather than to keep it confidential via reversible secrecy, obfuscation is the appropriate concept.