Sebastian Rohr has been active as author of multiple articles, reviews and essays on all kinds of security topics. Having a ten year record in IT with a background in network & systems management, network security and PKI he started his career with Siemens ICN in 1998. To get a deeper insight to wireless and mobile network security, he joined a newly founded reasearch group called SIMS at world famous Fraunhofer, establishing a research lab for seamless inter-network handover. Back in industry, he joined IAM vendor CA, playing a pivotal role in developing the DACH market for the growing number of Identity & Access Management products. Before joining KuppingerCole lately, he worked as the Chief Security Advisor at Microsoft, helping to spread the message of Trustworthy Computing and Secure Development Lifecycle as well as the new IAM products from Microsoft.