Foreword for the special issue of selected papers from the 3rd ACM SIGSPATIAL Workshop on Security and Privacy in GIS and LBS

The third Workshop on Security and Privacy in GIS and LBS (SPRINGL 2010) was organized in November 2, 2010, San Jose, California in conjunction with the SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2010). Security and privacy are the two dimensions of GIS systems and geospatial applications that need to be addressed for these applications to have wider acceptance. However, we are still far from fully achieving this goal with provable techniques that can be adopted by the industry. The SPRINGL workshop series aims to provide a forum for researchers working in the field of geospatial data security and privacy to discuss the advances in this domain. In order for solid archival work to be presented to the community, special issues of Transactions on Data Privacy have been organized for the previous SPRINGL workshops. This special issue contains three extended papers that have been selected from the papers presented at SPRINGL 2010 focusing mainly on the privacy aspects.