Dafna is a doctoral candidate at the Faculty of Law, Hebrew University of Jerusalem, Israel. Currently based in Canada, she is an affiliated researcher at the Desautels Centre for Private Enterprise and the Law at the University of Manitoba. From 2020 to 2023, Dafna was a Visiting Doctoral Student at the University of Toronto, Faculty of Law, where she co-taught Public International Law and New Technologies. During this period, she was also a visiting fellow at the Center for Ethics of AI and a research assistant at the Schwartz Reisman Institute for Technology and Society. In addition, Dafna served as a consultant to the OECD, advising on rights in the digital age.

Prior to her doctoral studies, Dafna served as legal counsel in the International Human Rights Law Department of the Israel Attorney General's Office. She also worked as a research assistant at the United Nations Office of Legal Affairs (OLA) and completed a legal internship at the International Criminal Tribunal for Rwanda (ICTR).

Dafna's research focuses on international human rights law in the digital age, examining the evolution of digital rights, the changing role of private companies in digital ecosystems, and the interplay between law, science, and technology.  Dafna's paper, co-authored with Prof. Yuval Shany, on the typology of digital human rights ("It’s the End of the (Offline) World as We Know It: From Human Rights to Digital Human Rights – A Proposed Typology"), was published at the European Journal for International Law.