The first thing you should do when setting up your wireless network is change the name of your router as well as the default login name and password. If a criminal knows the model name of your router, there is a good chance they can find out what the default login and password are with a quick web search. If they do this, then they'll be able to use the connection for their own purposes or even alter the DNS to redirect you to websites containing malware.Secondly, you should ensure you choose an appropriate level of encryption. WEP (Wired Equivalent Privacy) has been shown to be easily cracked and should be avoided if possible. WPA (Wi-Fi Protected Access) is a more secure method though not entirely uncrackable, but WPA II, the latest generation of this encryption standard, is recommended. Any device that connects to your wireless network - whether a laptop, mobile phone or media-streaming device - will neeed to support WPA II as well. Some older gadgets will not be compatible.