There seems to have been quite a bit of press lately about “Shadow IT” and it gives the impression that it's a new thing. Perhaps having a formally recognised name is new but shadow IT has been around throughout my (so far 28 year) career in IT and I suspect that it's much older than that. What is Shadow IT? Shadow IT is what happens when someone, not associated with the IT department, starts offering IT services to other parts of the business. Shadow IT can take the form of someone bringing in software from home, downloading software or even writing their own. Sometimes hardware is involved too with work PCs being opened, repaired, upgraded or otherwise "enhanced". In particular, since the emergence of cheap network hardware and the explosive growth of USB, its become very common to find users trying to plug their own hardware into work systems and networks. Sometimes new systems are developed. In one place I worked, a marketing employee rolled out a La...