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What is Steganography?

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What is Steganography?

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Steganography is a message “hiding in plain sight.” One way of hiding a message within an image is to change the least significant bits so that they become the message bits. Because of their invasive nature, most steganography systems leave detectable traces within a medium’s characteristics, traces that allow the open source tool StegDetect that is distributed with File Scrub to detect specific types of steganography in JPEG files. In so doing, File Scrub reveals the presence of the secret communication but is not able to decode the information.

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