Ensuring the forgery-proof issuance of electronic tickets, including those on mobile terminal devices, is paramount in today’s transportation world. T-Systems offer a robust solution to meet these security demands. Our comprehensive approach includes the establishment of a state-of-the-art security concept and management system, incorporating essential elements such as a trust center, key management, and PKI (Public Key Infrastructure). We issue user media certificates for tickets, including mobile options, and develop and produce security modules (SAM) designed for sales, acquisition, and control terminals. Furthermore, we provide and continuously enhance a test suite for customer media, ensuring compatibility across various components. The benefits to our customers are substantial: diverse ticketing procedures tailored to their needs, automated fare calculation, and seamless interoperability facilitated by uniform interfaces across transport networks. T-Systems’ cutting-edge security infrastructure for eTicket Deutschland not only ensures robust fare management but also enables its widespread adoption across public transport systems in Germany and beyond, enhancing the overall travel experience.