Dear all User location privacy and the privacy and security of geo-spatial data are important aspects in the wireless world. If you are concerned or ever wondered about your privacy when using your mobile phone and want to help research that aims at making things better, you can do it by taking this survey, organised by Signal processing for wireless positioning group, from Tampere University of Technology: https://www.webropolsurveys.com/S/E2A7EACEA9AE1CE2.par We would also highly appreciate if you can distribute the link further to your friends and colleagues. Thank you for your participation and apologies if you receive multiple versions of this email, Simona Lohan, on behalf of the TLTPOS team --- Associate Professor Tampere University of Technology, Finland www.cs.tut.fi/tlt/pos