WiMAX is wireless broadband that liberates high-speed Internet connectivity from the home or office to the laptop computer and mobile telephone. WiMAX is a technology that provides always-on Internet access anywhere and at anytime.

Wireless networking can be kind of scary from a security standpoint. It opens up whole new attack vectors that were not present with wired network infrastructures. That doesn't mean you can't do it securely.

Wi-Fi Piggybacking is becoming a common phenomenon. You go out to a busy area, power up your laptop or mobile device, scan for wireless connection, and hope to get a signal that isn't encrypted.

A number of education professionals have raised concerns about the use of wi-fi internet networks in schools, following a Panorama report into the technology. So just how safe is it? What is wi-fi?