Dr. Kai Martius is CTO and member of the Management Board of secunet AG. He is responsible for technology, development, product management and certification. From 2007 to 2015, he headed the business unit High Security/Public Sector. Kai Martius has been with secunet since 1999, the year of his doctorate in electrical engineering at the TU Dresden. Dr. Martius is one of the key architects of SINA and has extensive experience in the design, implementation and deployment of cyber security products in the public sector.