15 June 2006

Hidden EXIF thumbnail security problem

Now here's something to make you wary of posting your photos on the web if you've touched them up.
"Digital cameras store small image called 'thumbnail' inside big image content. Usually this image gets lost in later image processing, but sometimes thumbnail contain sensitive information cropped off from big image."

This site has a few examples of recovered data from the 'hidden' files that are often placed within images.
Hidden EXIF thumbnail security problem:
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