Maija Poikela received her PhD on subjective privacy in location-based systems from the Quality and Usability Lab at TU Berlin, Germany. She obtained her M.Sc. degree in Signal Processing and Communications Engineering from Tampere University of Technology, Finland, in 2010, focusing on subjective quality and the human perception of stereoscopic videos. Her research focuses on usable privacy – the intersection of human users and technology – assessing the challenges posed by collection, processing, and distribution of personal information. Her work considers in particular the context of sensor data. She conducts empirical research in which she assesses the effect of various factors such as context on privacy perception and on privacy-related behaviour.

• Introduction.- What is Privacy.- Theoretical Background to Location Privacy.- How to Predict Location Privacy Behavior.- Perceived Risks and Benefits in LBS.- Location Disclosure and Self-Disclosure.- Quantifying Location Privacy.- Privacy Protection Behavior.- Discussion and Summary of Results.- Conclusion.