Embedding a serial number or watermark into a data file is known as:

Question

Options

• AHashing
• BSteganography
• CMessage Digest
• DImprinting

• A
  6% (1)
• B
  78% (14)
• C
  17% (3)

Explanation

Steganography is the practice of concealing information within another medium - embedding a serial number or watermark into a data file hides the data inside the file itself, making it ideal for tracking or proving ownership without altering the file's apparent content.

• A (Hashing) is wrong because hashing generates a fixed-length fingerprint from data to verify integrity; it doesn't embed anything into the file.
• C (Message Digest) is wrong because it's essentially a synonym for a hash output - a one-way summary of data, not something inserted into a file.
• D (Imprinting) is a plausible-sounding distractor but is not a recognized cryptographic or security term for this process.

Memory tip: Think of steganography as "stealthography" - it hides data in plain sight inside another file, like a secret message written in invisible ink.

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