The widespread deployment of surveillance cameras has raised serious privacy concerns. Many privacy-enhancing schemes have been proposed to automatically redact images of trusted individuals in the surveillance video. To identify these individuals for protection, the most reliable approach is to use biometric signals such as iris patterns as they are immutable and highly discriminative. In this...

This paper examines workplace surveillance and monitoring. It is argued that privacy is a moral right, and while such surveillance and monitoring can be justified in some circumstances, there is a presumption against the infringement of privacy. An account of privacy precedes consideration of various arguments frequently given for the surveillance and monitoring of employees, arguments which lo...

Disclosure of the NSA’s PRISM program demonstrated that Internet companies have become prime targets of government surveillance. But what role do companies themselves play in putting users’ privacy at risk? By comparing the changes in the privacy policies of ten companies—the nine in PRISM plus Twitter—I seek to understand how users’ privacy shifted. Specifically, I study how company practices ...

During the last decades surveillance systems developed from analog one camera one monitor systems to highly complex distributed systems with heterogeneous sensors that can handle surveillance tasks autonomously. With raising power and complexity, ensuring privacy became a key challenge. An event-driven SOA architecture that follows the privacy by design principle is a promising approach to real...

Surveillance technologies are used all over the world for various reasons. In urban environments, surveillance technologies are predominantly used for detecting or preventing crimes. Simultaneously, an increasing number of technologies are used for medical monitoring at home, but also at clinical facilities, and at public environments for assuring patients’ medical safety. An intensive policy d...

This paper is still being revised. It will eventually appear in the proceedings of the 2010 surveillance studies conference. It can then be cited as follows: George Danezis and Seda Gürses, A critical review of 10 years of Privacy Technology, In the Proceedings of Surveillance Cultures: A Global Surveillance Society?, April 2010, UK. Since 2000 there has been a renewed interest amongst computer...