Andreas has been working in the field of SAP security since 2003. He has discovered a considerable number of zero days in SAP software and was the co-author of the first book about security aspects in SAP’s programming language ABAP. He has given presentations on SAP security at more than 50 conferences, including Black Hat, DeepSec, HITB, IT-Defense, RSA, SAP TechEd and Troopers (in alphabetical order).