Kai Rannenberg holds the Deutsche Telekom Chair of Mobile Business & Multilateral Security at the Goethe University in Frankfurt since 2002. Before he worked at Microsoft Research Cambridge, UK focussing on "Personal Security Devices & Privacy Technologies".
Kai studied at the TU Berlin and received his PhD at Freiburg University where he then coordinated the interdisciplinary "Kolleg Security in Communication Technology", sponsored by Gottlieb Daimler & Karl Benz Foundation researching Multilateral Security.
Since 1991 Kai is active in the ISO/IEC standardization of IT Security and Criteria and since March 2007 in Identity management and privacy technologies.
He chairs IFIP TC-11 "Security and Privacy Protection in Information Processing Systems". Kai chairs the Legal & Security Issues Special Interest Network of the Council of European Professional Informatics Societies (CEPIS) since 2003.
In July 2004 Kai was appointed as academic expert to the Management Board of the European Network and Information Security Agency, ENISA.
Kai`s awards include the IFIP Silver Core, the Alcatel SEL Foundation Dissertation Award and the Friedrich-August-von- Hayek-Preis of Freiburg University and Deutsche Bank.