Mariarosaria Taddeo

Research Fellow

Mariarosaria Taddeo is a Researcher Fellow at the Oxford Internet Institute, where she co- leads (with Luciano Floridi) the Privacy and Trust Stream (social lead) of the PETRAS research hub on IoT. She is also Junior Research Fellow at St Cross College and Faculty Fellow at the Alan Turing Institute.Her recent work focuses mainly on the ethical analysis of cyber security practices, cyber conflicts, and ethics of data science. Her area of expertise is Philosophy and Ethics of Information, although she has worked on issues concerning Epistemology, Logic, and Philosophy of AI.

Taddeo’s publications focus on online trust, cyber security, and cyber warfare, and has guest-edited a number of special issues of Ethics and Information Technology (Springer), Knowledge, Technology and Policy (Springer), and Philosophy & Technology (Springer), Philosophical Transaction A (Royal Society), which significantly contributed to shape the field of Information and Computer Ethics.

In 2016, Taddeo edited (with L. Floridi) a special issue of Philosophical Transaction A (Royal Society) on The ethical impact of data science, one of the first dedicated publications in this area of research. She also edited volumes such as The Ethics of Information Warfare (with L. Floridi, Springer, 2014), Ethics and Policies for Cyber Operations (with L. Glorioso, Springer, 2016), The Ethics of Information Technologies (with K. Miller, Routledge 2016), The Responsibilities of Online Service Providers (with L. Floridi, Springer, 2017), and is the author of The Ethics of Cyber Conflicts (Routledge, forthcoming).

In 2010, she was awarded The Simon Award for Outstanding Research in Computing and Philosophy in recognition of the scholarly significance of her two articles: An Information-Based Solution for the Puzzle of Testimony and Trust (Social Epistemology, Springer) and Modelling Trust in Artificial Agents, a First Step toward the Analysis of e- Trust (Minds & Machines, Springer). In 2013, she received 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 (Springer), in the executive editorial board of Philosophy & Technology (Springer). She is also Fellow of the Council on the Future of Cybersecurity of the World Economic Forum.

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 the occurrences of trust in distributed artificial systems.

Research interests

information and computer ethics, philosophy of information, philosophy of technology, ethics of cyber-conflicts and cyber-security, applied ethics

Positions held at the OII

  • Researcher, January 2015 –



  • Taddeo, M. and Floridi, L. (2016) The Responsibilities of Online Service Providers. Springer.
  • Taddeo, M. and Glorioso, L. (2016) Ethics and Policies for Cyber Operations A NATO Cooperative Cyber Defence Centre of Excellence Initiative. Springer.
  • Floridi and Taddeo The Ethics of Information WarfareLaw, Governance and Technology Series. Springer.

Journal articles