Hotlinking, which is occasionally referred to as bandwidth theft also, identifies linking to images that are on another website. Basically, if you have a website with some images on it, somebody else may also create a website and rather than using their own images, they could put links directly to your images. Even though this may not be such a major issue if you have a smaller personal site, it shall be something really serious if the images are copyrighted, because somebody might be aiming to copy your Internet site and trick people. If your hosting plan has a limited monthly bandwidth quota, you will exhaust your resources without getting legitimate visitors, simply because the traffic shall be consumed by the other Internet site. This is the reason why you should think about preserving your content from being hotlinked - not just images, but also files, because in rare occasions other kinds of files are linked as well.