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We focus almost exclusively on software that runs locally on linux because of all the great software that is available. But in this post we’ll take a look at a couple of web based reources for doing some pretty effective image forensics. We test drove these sites using JPEG and PNG image files with content […]

Interest in steganography is increasing. In some ways that’s a good thing, but advanced pesistent threat (APT) groups are showing more interest than ever and that is troubling. These threat actors have the means to invest in the time and expertise needed to use these techniques to be highly effective at covertly moving information in […]

Welcome back to another installment in our series on steganography. After introducing Digital Steganography Basics, we just finished looking at a modern form of hiding text within text using the snow technique in the post titled Digital Text Based Steganography. Let’s move on to talk about binary files now, as they represent a more popular […]

We mentioned that hiding text within text is the common ancestor of all steganographic techniques earlier, in our initial post on digital steganography basics. However, in the digital age there are some new wrinkles due to the existence of various kinds of computer files. Of course text messages can be concealed in any number of […]

Let’s talk about modern steganography. I don’t want to cover the long history of it, since that requires dedicating a full post to the techniques used over the centuries to conceal information. Old techniques are typically meant to hide text messages, since audio and video recording was not possible, and recorded images were not digital. […]

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