The special issue collects a selection of papers presented during the Computer Ethics: Philosophical Enquiries (CEPE) 2013 conference. This is a series of conferences organized by the International Association for Ethics and Information Technology (INSEIT) (http://inseit.net/), a professional organization formed in 2001 and which gathers experts in information and computer ethics prompting interdisciplinary research and discussions on ethical problems related to design and deployment of information and communication technologies (ICTs). During the past two decades, CEPE conferences have been a focal point for the research concerning crucial topics (Buchanan 1999, 2011), such as privacy (Hildebrandt, Mireille 2008), online trust (Taddeo 2010; Taddeo and Floridi 2011), online identity (Ess 2012), value-sensitive design (Friedman and Peter H. Kahn, Alan Borning 2006), cyber-warfare (Floridi and Taddeo 2014; Taddeo, Mariarosaria 2014), along with education and professional ethics (Buchanan and D. Ocholla 2011).