SY0-301 · Question #613
Which of the following can hide confidential or malicious data in the whitespace of other files (e.g. JPEGs)?
The correct answer is D. Steganography. Steganography is the practice of concealing secret or malicious data within ordinary-looking files such as images, audio, or video, without obvious detection.
Question
Which of the following can hide confidential or malicious data in the whitespace of other files (e.g. JPEGs)?
Options
- AHashing
- BTransport encryption
- CDigital signatures
- DSteganography
How the community answered
(46 responses)- A4% (2)
- B2% (1)
- C2% (1)
- D91% (42)
Why each option
Steganography is the practice of concealing secret or malicious data within ordinary-looking files such as images, audio, or video, without obvious detection.
Hashing produces a fixed-length digest used for integrity verification and does not conceal or embed data within other files.
Transport encryption protects data in transit over a network but does not hide information inside carrier files.
Digital signatures provide authenticity and integrity assurance for data but do not embed hidden content inside other files.
Steganography hides data within the structure of a carrier file - such as embedding secret text in the least-significant bits of a JPEG's pixel data - making the hidden content invisible to casual inspection. It differs from encryption in that the existence of the hidden message is concealed, not just its contents. Both attackers exfiltrating data and malware authors use steganography to evade detection.
Concept tested: Steganography hiding data in carrier files
Source: https://learn.microsoft.com/en-us/azure/security/fundamentals/encryption-overview
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