You need to make sure that no one else is stealing your internet connection. If you have wireless Internet for laptops in your house, the signal will be visible to people in the nearby houses. They will be able to see it on their own computers in the same way that you can see it in your house. The signal is restricted by distance, but this is a loose restriction. You cannot really set things up so that the signal is only visible within your own home unless the building in which you live is very big. With most plans for wireless Internet for laptops, you do not have to pay based on the amount of bandwidth that you use. It is unlimited. You just pay for the service in the first place. This leads some people to wonder why it even matters if the neighbors are able to use it. If it will not cost you more, what is it hurting? Why not just share with them? The reason why sharing with anyone is not a good idea is that having too many people on the same connection can slow it down. You do not want the whole block to use your connection or it will not work very well at all. When you set it up, you need to create a password. You can do this from the website that controls the router that you have purchased. You can also name the connection at this point. You can call it anything that you want. There will be some stipulations for the password. It has to have at least a certain amount of characters, for example. This is different for every router, but yours will tell you what to do. This does mean that people can plug straight into the modem and then they will not have to know the password. However, the odds that this will happen in your house without your permission are very small. This should not pose a problem. As long as the wireless signal is protected, you will have a fast connection for downloading, uploading, and anything else that you choose to do.