Carmela Troncoso

Tell me where you go and I will tell you who you are: Privacy issues with location data


Abstract: Location Based Services (LBSs) enable users to, among others, let their friends know where they are, find nearby points of interest, or obtain contextual information about their surroundings. In the typical LBS implementation user locations are disclosed to the LBS provider. This raises privacy concerns, as location information is known to reveal potentially sensitive private information.

In this talk we will revise latest works on location privacy-preserving mechanisms that aim at reducing the amount of information received by the adversary. We will study two particular flavors: those protections based on altering the users’ actual location before exposing it to the service provider, and those based on aggregating location information to hide individual’s trajectories.

Bio: Carmela Troncoso is an Assistant Professor at EPFL (Switzerland). She holds a Master’s degree in Telecommunication Engineering from the University of Vigo (2006) and a Ph.D. in Engineeringfrom the KU Leuven (2011). Her thesis “Design and Analysis methods for Privacy Technologies” received the European Research Consortium for Informatics and Mathematics Security and Trust Management Best Ph.D. Thesis Award. Before arriving to EPFL she was a Faculty member at the IMDEA Software Institute (Spain) for 2 years; the Security and Privacy Technical Lead at Gradiant working closely with industry to deliver secure and privacy friendly solutions to the market for 4 years; and a pos-doctoral researcher at the COSIC Group.

Her research focuses on security and privacy, with main contributions to the field of anonymous communications and location privacy. She has published more 38 refereed scientific papers with more than 35 people, in the most prestigious venues in Security (e.g. ACM Conference on Computer Security or USENIX Security Symposium) and Privacy (Privacy Enhancing Technologies) and also in JCR journals such as the IEEE Trans. on Information Forensics and Security. She was co-author of the Gold Award to Best Student Paper at the IEEE Intl. Workshop on Information Forensics and Security in 2011. She has served on more than 25 program committees of international conferences (e.g., PETS and other key venues in security), and has reviewed articles for numerous international journals. She has been program chair of the Hot Topics in Privacy Enhancing Technologies Workshop in 2010 and 2011, General Chair of the Privacy Enhancing Technologies Symposium in 2012, Poster/Demo chair of the ACM Conference on Computer Security in 2013, and Caspar Bowden PET Award Chair for 2015 and 2016. Currently, she is the Co-Editor-in-Chief (and Program Chair) for PoPETS in 2018 and 2019.