He studies, writes and lectures about privacy and new technologies (and some other information issues, such as copyright law). He served as the chair of the legal committee of the Public Council for the Protection of Privacy; a sub-contractor for the EU Commission in its assessment of the Israeli data protection regime; a member of the Schofman Committee at the Ministry of Justice. His book in Hebrew, Private Space, won the 2010 prize of the Association of Political Scientists. He is currently engaged in research about PbD, and another research on data leakage from social networks.