The Center for International Studies is a multidisciplinary research center at Iscte – University Institute of Lisbon. CEI promotes interdisciplinary research in Social Sciences, IR, and Economy. Its work focuses, among other areas, on Europe and Transatlantic Relations, to address the most critical 21st Century international developments and societal challenges. These include challenges to international security, such as cybersecurity, disinformation, and its impacts at multiple levels.