Mariarosaria Taddeo is a Senior Researcher Fellow and Programme Director of the DPhil in Information, Communication and the Social Sciences at the Oxford Internet Institute.  She is also a Faculty Fellow at the Alan Turing Institute.

Dr Taddeo is a philosopher working on the ethics of digital technologies. Her most recent work focuses on Digital ethics, spanning from Ethics of AI to Ethical analysis of Cybersecurity practices, Cyber Conflicts, and Ethics of Data Science. Her area of expertise is Philosophy and Ethics of Information, although she has published in areas like Epistemology, Logic, and Philosophy of AI.

Dr Taddeo’s work has been published in major research journals, like Nature, Nature Machine Intelligence, Science, and Science Robotics, Philosophical Transaction of the Royal Society A. She has published extensively on online trust, ethics of cyber conflicts, cyber deterrence, the use of artificial intelligence (AI) for national defence, and AI for social good. A complete list of her publications can be found on her Google Scholar profile.

Dr Taddeo is Principal Investigator or Co-Principal Investigator on a number of research project ranging from the ethical challenges of the use of AI for national defence, socially good uses of AI, AI to advance Sustainable Development Goals.

In 2018, ORBIT listed her among the 100 experts working on AI in world. In the same year, she has been listed among the top 50 most inspiring Italian women working in digital technologies. Dr Taddeo has been awarded The Simon Award for Outstanding Research in Computing and Philosophy; and the World Technology Award for Ethics acknowledging the originality and her research on the ethics of cyber conflicts, and the social impact of the work that she developed in this area.

Since 2016, Taddeo serves as editor-in-chief of Minds & Machines (SpringerNature), in the executive editorial board of Philosophy & Technology (SpringerNature).

Before joining the OII, Taddeo was Research Fellow in Cyber Security and Ethics at the Department of Politics and International Studies, University of Warwick. From 2010 to 2012 she held a Marie Curie Fellowship at the University of Hertfordshire, where she was working on information warfare and its ethical implications.

She holds a PhD (Doctor Europeus) in Philosophy from the University of Padua. Her PhD thesis focused on the epistemic and ethical implications of trust in artificial systems.

Research focus

Digital Ethics, Philosophy of Information, Philosophy of Technology, Ethics of Cyber Conflicts and Cybersecurity

Positions held at the OII

  • Research Fellow, October 2017-2020
  • Researcher, January 2015 – October 2017


Past projects

  • PETRAS: Internet of Things (IoT) Research Hub

    Participants: Professor Luciano Floridi, Dr Brent Mittelstadt, Dr Mariarosaria Taddeo

    The PETRAS IoT Research Hub is a consortium of 9 UK universities working together to explore critical issues in privacy, ethics, trust, reliability, acceptability, and security.

  • Landscaping Strategic Cyber Deterrence

    Participants: Dr Mariarosaria Taddeo

    This is an inter-divisional and multidisciplinary eight-month pilot study devoted to landscape the problem space and the future research on strategic cyber deterrence (SCD).

  • An Ethical Framework for the New Civic Responsibilities of Online Service Providers

    Participants: Professor Luciano Floridi, Dr Mariarosaria Taddeo

    This project aims to analyse the new civic responsibilities of Online Service Providers, and the policies regulating them.



  • Cornelissen, P.L., Kringelbach, M.L., Hansen, P.C. and Pugh, K. (2010) "Introduction" In: The neural basis of reading Cornelissen, P.L., Hansen, P.C., Kringelbach, M.L. and Pugh, K. (eds.). Oxford: Oxford University Press. ix-xii.

Conference papers

  • Taddeo, M. (2017) "Just Information Warfare", ETHICS AND POLICIES FOR CYBER OPERATIONS: A NATO COOPERATIVE CYBER DEFENCE CENTRE OF EXCELLENCE INITIATIVEPhilosophical Studies Series. Springer International Publishing. 124 67-86.

Journal articles



  • Taddeo, M. (2018) "How to Deter in Cyberspace", Hybrid CoE - Strategic Analysis. Hybrid CoE – The European Centre of Excellence for Countering Hybrid Threats,: Taylor & Francis. 1-9.


  • Social Dynamics of the Internet

    An overview of the major findings to date regarding the social implications of the Internet, drawing material from several social science disciplines, including communication studies, sociology, and political science.

  • The Philosophy and Ethics of Information

    This course introduces some key concepts and phenomena related to information, and seeks to answer some crucial theoretical questions of great philosophical significance prompted by the development of the information society.






Integrity Statement

I serve as non-executive president of the board of directors of Noovle Spa, and I serve as an advisor to Clearbox AI.

I conduct my research in line with the University's academic integrity code of practice.