Yes it’s very secure, you set a password for your wireless network that only the computers on your network know. This stops other computers from connecting to the network and getting access. There are two types of security for wireless networks; WiFi Protected Access (WPA) and Wired Equipment Privacy (WEP). Of these WPA is the newer and more robust. We would recommend that you choose wireless equipment that can use WPA. The great thing about most wireless routers is that they come with a built in firewall that adds an extra layer of protection to all your computers. We wouldn’t suggest you remove firewall software from your computers. This extra level of security is always worth having. If you don’t password protect your network you may find that people with computers close to your house can connect to your broadband connection wirelessly. This can lead to you paying for bandwidth that they use, or even to the more serious issue of them downloading illegal content that could be associated with your connection! All this is easily solved by simply implementing the security we described.