When you crop a photo and save it in some older versions of Photoshop, it sometimes keeps a thumbnail of the original image embedded in the picture. It turns out Cat was topless in the uncropped images, and when found by savy TechTV viewers they got posted all over the internet
. There were a bunch of interviews with her afterwards where she talked about how embarrasssing it was.
Whenever I see a photo that looks like something was cropped out of it I now always check to see of there is an embedded thumbnail