Codaspy '18 : ACM : 9781450358798 : 1450358799 : 19 Oct 2018 : It is our great pleasure to welcome you to the eighth edition of the ACM Conference on Data and Application Security and Privacy (CODASPY 2018), which follows the successful seven editions held in February/March 2011-2017. This conference series has been founded to foster novel and exciting research in this arena and to help generate new directions for further research and development. The initial concept was established by the two co-founders, Elisa Bertino and Ravi Sandhu, and sharpened by subsequent discussions with a number of fellow cyber security researchers. Their enthusiastic encouragement persuaded the co-founders to move ahead with the always daunting task of creating a high-quality conference. Data and applications that manipulate data are crucial assets in today's information age. With the increasing drive towards availability of data and services anytime and anywhere, security and privacy risks have increased