Grey hat he violated their policies making this a grey hat incident. Grey hat The term "grey hat", alternatively spelled as "greyhat" or "gray hat", refers to a computer hacker or computer security expert who may sometimes violate laws or typical ethical standards, but does not have the malicious intent typical of a black hat hacker. The term began to be used in the late 1990s, derived from the concepts of "white hat" and "black hat" hackers. When a white hat hacker discovers a vulnerability, they will exploit it only with permission and not divulge its existence until it has been fixed,
Black and white some of the early home computers; this was to accommodate black-and-white TV sets, which would display a color signal poorly. (Typically a different shading scheme would be used for the display in the black-and-white mode.) In computing terminology, "black-and-white" is sometimes used to refer to a binary image consisting solely of pure black pixels and pure white pixels; what would normally be called a black-and-white image, that is, an image containing shades of gray, is referred to in this context as grayscale. Black and white Black-and-white (B/W or B&W) images combine black and white in a continuous spectrum, producing a