Dr. Björn Rupp is the Chief Executive Officer of GSMK, a pioneer of mobile voice and message encryption and mobile device and network security. GSMK develops, produces and markets secure mobile, satellite and fixed-line telephones as well as network security solutions for mobile network operators. Björn has over sixteen years of experience in the telecommunications industry and is the author of several journal articles and book chapters on Internet economics, satellite communications systems, and mobile communications security.