The fact that Wi-Fi stands for Wireless Fidelity hints at how long Wi-Fi has been around, but it was only in 1999 that the Wi-Fi Alliance formed as a trade association to hold the Wi-Fi trademark, under which most products are sold. Today, Wi-Fi is on the top of the list of must-haves for businesses of all types and sizes. People will simply vote with their feet if good and, usually free, Wi-Fi is not available.

But this demand for anytime, anyplace connectivity can mean that some of us are prepared to jump onto Wi-Fi hotspots at cafes, hotel, airports or company guest networks, with only a fleeting consideration of security – a fact that has not gone unnoticed by cyber criminals.