PETs and their users: a critical review of the potentials and limitations of the privacy as confidentiality paradigm

Abstract

“Privacy as confidentiality” has been the dominant paradigm in computer science privacy research. Privacy Enhancing Technologies (PETs) that guarantee confidentiality of personal data or anonymous communication have resulted from such research. The objective of this paper is to show that such PETs are indispensable but are short of being the privacy solutions they sometimes claim to be given current day circumstances. Using perspectives from surveillance studies we will argue that the computer scientists’ conception of privacy through data or communication confidentiality is techno-centric and displaces end-user perspectives and needs in surveillance societies. We will further show that the perspectives from surveillance studies also demand a critical review for their human-centric conception of information systems. Last, we rethink the position of PETs in a surveillance society and argue for the necessity of multiple paradigms for addressing privacy concerns in information systems design.