Router is a networking device whose Software and Hardware can be altered to the task of routing and forwarding information. It performs the function of transferring the data and commands coming from different places in the network towards their destination.
Wireless routers are actually wired routers with wireless access points built in to have wired or wireless at the same time. Another type of wireless router is a built-in DSL or cable modem.
Wireless networks are as insecure as they are convenient, in absence of proper security measures. Any trouble maker within range can eavesdrop on your online activities, leech off your internet connection and can access any of your file stored in your computer.
