Using Shadow IT is a security risk for the German economy, according to the recent Security Report 2016 by eco - Association of the Internet Industry. The alarming result comes from a survey among 580 IT experts in German, mostly medium-sized companies. Shadow IT is a catchword for unauthorised hard and software as well as cloud services that exist independent from an organization`s IT and endanger sensitive corporate data. Around one third of the surveyed experts believed that there is Shadow IT being used in their companies, 23 percent think this happens on a considerable scale. Only 16 percent said there was none. But what makes applications that seem to make sense for the user so dangerous for companies? And how can more companies go from the shadow to the sunny side of IT?