Robin Fay from Siegen in Germany has been with Telekom Security for more than three years. As a cryptologist, he deals with mathematical constructions and IT security protocols that secure our daily communication. Sounds complicated, doesn't it? It's a good thing he has a strong didactic streak and enjoys imparting his knowledge. As a lecturer he gives lectures and specialist presentations. He is also active in standardization. His main topics are IT security and cryptography.