An interesting little Windows hack, using "copy" to store a ZIP or Rar archive inside of a PNG or JPEG image file. Allowing you to later extract it with WinRAR archiver, while still seeing the image when you open normally.

If done correctly, you should be able to view your normal JPG, and open it with WinRAR to the see contents of the Rar file you added.

This doesn't work with software designed to search hard drives for hidden files and folders and doesn't mean it's foolproof. It doesn't take the CIA, FBI or MI5 to find your files and get the archives, any loser can do it.

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