Hotlinking, which is oftentimes called bandwidth theft also, describes linking to images which are on another website. Simply, if you have a website with some images on it, another person may also develop 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 can be something really serious if the images are copyrighted, because somebody could be trying to copy your website and cheat people. If your web hosting package deal has a restricted monthly bandwidth quota, you can use up all your resources without getting legitimate visitors, simply because the traffic will be consumed by the other website. This is why you need to consider protecting your content from being hotlinked - not just images, but also files, since in rare occasions other sorts of files are linked also.