This chapter aims to identify and analyse the ethical problems of security, particularly cyber and digital threats. The concepts of security and safety are defined based on existing literature. The chapter addresses the key results and research gaps in the field (i.e., security issues in different areas) and future challenges, both theoretical and empirical. Moreover, the discussion is linked to an analysis of the relationship between utilitarian ethics and deontological ethics, which brings a new perspective to the debate on security ethics in general and cybersecurity. Finally, comprehensive security and absolute safety ideas are discussed, which sheds new light on the complexity of security concerns.