Here`s a piece of jargon to make even IT people shudder: deperimeterisation. This one is sending icy spikes into the hearts of entire IT organisations, because it means the end of old-style IT security as we know it.

In short, the word refers to the fact that conventional security perimeters around the outside of an organisation are now woefully inadequate. Today, the perimeter has shrunk to an area around every single access point to a company`s data, whether that be a mobile access channel or a USB flash drive.