Data Safe is an interactive audio-visual art installation, which raises important questions about data privacy, application of human monitoring systems, usage of human body for data generation and data collection. Data Safe is a real time data driven installation in which the visitors´ movements around the exhibition space are detected with the usage of microwave sensors. Data like movements of the visitors and speed is in real time visualised as well as sonified into a multi-channel sound environment along the perimeter of the space.