Hackthebox
Hack The Box Cybersecurity Training
Published: March 4, 2026
Video Description
In this video, we’re breaking down steganography. What it is, how it works, and why hiding data inside ordinary files is more powerful than most people realize. I walk through the core concept of embedding secret information into images using least significant bit (LSB) manipulation, explain how pixel data is stored in binary, and demonstrate how tiny bit flips can carry entire hidden messages without changing how an image looks.
You’ll also see a hands-on walkthrough using Steghide to embed and extract a secret file from a Linux image, including how passphrases add an extra protection layer. Then we shift to hiding data in plain text using StegSnow, where invisible trailing spaces and tabs become storage for concealed information.
*0:00* – Hidden message inside a normal Linux image?
*0:27* – What steganography actually is
*1:19* – How image pixels store data (binary breakdown)
*1:43* – Least Significant Bit (LSB) manipulation explained
*2:06* – Using Steghide to embed a secret file in an image
*2:48* – Adding a passphrase (extra protection layer)
*3:19* – Extracting the hidden message
*3:39* – Hiding data in plain text with whitespace
*3:50* – Introduction to StegSnow
*4:19* – Embedding a secret into a cover text file
*4:49* – Viewing the stego file (why you can’t see anything)
*5:25* – Comparing cover file vs stego file in nano
*5:39* – The bigger concept: hiding data in digital noise
*6:06* – Why steganography avoids suspicion
*6:28* – Steganography vs encryption
*6:35* – Final thoughts
Steganography tutorial
What is steganography
Steganography explained
Hidden messages in images
Hide data in image
LSB steganography
Least Significant Bit steganography
Steghide tutorial
StegSnow tutorial
Hide data in text file
Cybersecurity tutorial
Linux security tools
Kali Linux tools
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