Prof. Dr. Kai Rannenberg completed his PhD at Freiburg University on IT Security evaluation criteria, certification and the protection of users and subscribers. He holds the Chair of Mobile Business & Multilateral Security  at Goethe University Frankfurt since 2002 and is also a member of the Faculty of Informatics and Mathematics and since 2012, a Visiting Professor at the National Institute for Informatics (NII) (Tokyo, Japan). In 1999-2002 he was with Microsoft Research Cambridge focussing on Personal Security Devices & Privacy Technologies. He has been coordinating several leading EU research projects, e.g. the Network of Excellence Future of Identity in the Information Society (FIDIS) and the Integrated Project Attribute based Credentials for Trust (ABC4Trust). Currently he is coordinating CyberSec4Europe, a pilot for the European Cybersecurity Competence Network the EU is establishing. Since 2007 he has been Convenor ISO/IEC JTC 1/SC 27/WG 5 Identity management & privacy technologies, since 2003 Chair of CEPIS (www.cepis.org) Legal & Security Issues Special Interest Network and from 2007 till 2013 Chair of IFIP TC-11 “Security and Privacy Protection in Information Processing Systems”. Kai’s research interests include: mobile and embedded systems and Multilateral Security in e.g. M-Business, LBS, transport systems, and industrial applications, privacy and identity management, especially attribute based authorisation, communication infrastructures and devices, e.g. personal security assistants and services as well as security and privacy standardisation, evaluation, and certification.