February 2026
Intermediate to advanced
456 pages
17h 3m
English
Content preview from Digital Forensics, Investigation, and Response 5E, 5th Edition
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Steganography
Steganography is the art and science of writing hidden messages. The goal is to hide information, so that even if it is intercepted, it is not clear that information is hidden there. The most common method today is to hide messages in pictures. One of the most common methods of performing this technique is the least significant bit (LSB) method (when the last bit or least significant bit is used to store data). To be clear, this is not the only technical method for performing steganography, just the most common. The LSB method depends on the fact that computers store things in bits and bytes. Now consider for a moment an 8-bit byte. For example, consider 11111111. If you convert this to a decimal number, it equals 255. Now if you ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.