The European Interdisciplinary Cybersecurity Conference – EICC 2020 aims at establishing a venue for the exchange of information on cybersecurity and its many aspects between academics and practitioners in Europe. EICC was formerly known as the Central European Cybersecurity Conference – CECC and has been rebranded to underscore the interdisciplinarity of the conference and broaden its reach. EICC 2020 encourages the dialogue between computer scientists and researchers in all other fields related to cybersecurity, such as behavioral sciences, sociology, criminology, investigations and law. Interdisciplinary contributions are especially welcome.