I have 18 years of experience, and specialize in the field of computer science with specific knowledge in the areas of access control, information security and the insider problem. I have published on such topics as policy-based access control, countering insider attacks and verification of composed security policies. I am fluent in English, German, have a good understanding of French, and I was privileged to be able to work in Germany (3 years), the US (7 years) and in the UK (8 years).