The Impact of Information Security Technologies Upon Society

This paper's aims are concerned with the effects of information security technologies upon society in general and civil society organisations in particular. Information security mechanisms have the potential to act as enablers or disablers for the work of civil society groups. Recent increased emphasis on national security issues by state actors, particularly 'anti-terrorism' initiatives, have resulted in legislative instruments that impinge upon the civil liberties of many citizens and have the potential to restrict the free flow of information vital for civil society actors. The nascent area of cyberactivism, or hactivism, is at risk of being labelled cyberterrorism, with the accompanying change of perception from a legitimate form of electronic civil disobedience to an abhorrent crime. Biometric technology can be an invasive intrusion into citizens' privacy. Internet censorship and surveillance is widespread and increasing. These implementations of information security technology are becoming more widely deployed with profound implications for the type of societies that will result

A Churn for the Better: Localizing Censorship using Network-level Path Churn and Network Tomography

Recent years have seen the Internet become a key vehicle for citizens around the globe to express political opinions and organize protests. This fact has not gone unnoticed, with countries around the world repurposing network management tools (e.g., URL filtering products) and protocols (e.g., BGP, DNS) for censorship. However, repurposing these products can have unintended international impact, which we refer to as "censorship leakage". While there have been anecdotal reports of censorship leakage, there has yet to be a systematic study of censorship leakage at a global scale. In this paper, we combine a global censorship measurement platform (ICLab) with a general-purpose technique -- boolean network tomography -- to identify which AS on a network path is performing censorship. At a high-level, our approach exploits BGP churn to narrow down the set of potential censoring ASes by over 95%. We exactly identify 65 censoring ASes and find that the anomalies introduced by 24 of the 65 censoring ASes have an impact on users located in regions outside the jurisdiction of the censoring AS, resulting in the leaking of regional censorship policies

Australian Governments and dilemmas in filtering the Internet: juggling freedoms against potential for harm

This paper examines proposed internet filtering policies in Australia from the 1990s to 2014 and discusses some of their ideological underpinnings. Executive summary The Internet is a revolutionary source of information and its dissemination; and a medium for collaboration and interaction between individuals without regard for geographic location. Since its inception, however, concerns have been raised about the potential for unsavoury characters to use the Internet as a vehicle for distributing pornography and material of a violent nature to young or otherwise vulnerable individuals. Governments across the world have attempted to deal with such activities by various means and to varying degrees. These have included imposing mandatory filtering at an Internet Service Provider (ISP) level and optional filtering at the computer level. In Australia there has been considerable debate about what degree of filtering (if any) should be mandated. The Howard Government favoured an approach which emphasised self-regulation by ISPs combined with a legislative component and education and freedom for families to choose between either computer or ISP filtering based on a list of unacceptable content. The Rudd and Gillard Governments preferred the option of a mandatory ISP level filter, although this too was to be based on a ‘blacklist’ of prohibited content. Both options have been criticised as being expensive and inefficient. In addition, it has been argued that the Rudd/Gillard option would have had a detrimental impact on Internet speeds and that it would set a precedent for future governments to widen filtering to other forms of expression. The Howard Government’s programs were largely discarded by Labor after it was elected in 2007. However, Labor’s own filtering option was abandoned prior to its defeat in the 2013 election. In conjunction with their filtering options , both Coalition and Labor Governments have supported education and information campaigns to assist people, particularly children, to deal with online predators and both have introduced successful programs. The current Coalition Government’s policy on Internet filtering appears to favour light-handed legislation combined with education and information programs. This paper examines the iterations of internet filtering policies from the 1990s to 2014 and discusses some of their ideological underpinnings

Internet Filters: A Public Policy Report (Second edition; fully revised and updated)

No sooner was the Internet upon us than anxiety arose over the ease of accessing pornography and other controversial content. In response, entrepreneurs soon developed filtering products. By the end of the decade, a new industry had emerged to create and market Internet filters....Yet filters were highly imprecise from the beginning. The sheer size of the Internet meant that identifying potentially offensive content had to be done mechanically, by matching "key" words and phrases; hence, the blocking of Web sites for "Middlesex County," or words such as "magna cum laude". Internet filters are crude and error-prone because they categorize expression without regard to its context, meaning, and value. Yet these sweeping censorship tools are now widely used in companies, homes, schools, and libraries. Internet filters remain a pressing public policy issue to all those concerned about free expression, education, culture, and democracy. This fully revised and updated report surveys tests and studies of Internet filtering products from the mid-1990s through 2006. It provides an essential resource for the ongoing debate