In bandwidth we consider a transfer of data from one node to another node so we can consider bandwidth is a bunch of wires or fibers connecting servers to a network. Depending on the grade of the wire it determines how much data is coming across the network where your web-site is hosted with some web hosting company. When someone attempts to get more data than can be handled by the network, the whole network slows down.
But how it works in a proper way? Then the answer comes out that bandwidth bandits link to images and other files directly to some other server instead of putting them on their local server. There are various reasons as to why they do this but one reason is to get as much bandwidth as possible to show their links and images. So they steal images or audio files each time the site is initialized meaning that they steal the bandwidth.
We can also stop peoples who want to steal the bandwidth allocation if they have an email, I would like to contact them personally or go through Network Solutions and do an IP lookup which will give you information on the person and who the site is registered to.