Dear Esteemed Participants, It is with great pleasure and enthusiasm that I welcome you to the Global Summit on Smart Systems: Big Data, IoT, Cybersecurity, and IT in Action, scheduled to be held from March 19–21, 2026, in Barcelona, Spain. This prestigious summit serves as an exceptional platform for researchers, innovators, industry professionals, and thought leaders to exchange transformative ideas and explore ground breaking developments in Smart Technologies, Artificial Intelligence, IoT, Cybersecurity, and Intelligent Computing. As we move deeper into the era of digital transformation, Smart Systems are revolutionizing industries, driving economic growth, and reshaping how we live and work. This summit offers an invaluable opportunity to delve into cutting-edge research, practical applications, and emerging global trends that are defining the future of smart technologies. We are honoured to feature a distinguished line up of keynote speakers, interactive panel discussions, and innovative technical sessions designed to foster collaboration, spark creativity, and inspire new directions in this rapidly evolving field. Whether you are joining us in person in Barcelona or virtually from around the world, we encourage you to actively engage, share insights, and contribute to shaping the next generation of Smart Systems. We look forward to your valuable participation and to making this summit an inspiring and impactful experience for all.