Research News

Citizen Lab's latest research publications.

Planet Blue Coat: Mapping Global Censorship and Surveillance Tools

Blue Coat Devices capable of filtering, censorship, and surveillance are being used around the world. 61 of these Blue Coat appliances are on public or government networks in countries with a history of concerns over human rights, surveillance, and censorship. Our findings support the need for national and international scrutiny of Blue Coat implementations in the countries we have identified, and a closer look at the global proliferation of “dual-use” information and communication technologies.

Characterizing Large-scale Routing Anomalies: A Case Study of the China Telecom Incident

In April 2010, China Telecom’s network announced incorrect paths to 50,000 IP prefixes, referred to as a “hijack”. The politically sensitive nature of some of the IP prefixes that were hijacked brought this incident to the attention of the US government. It raises many important questions about how we characterize and reason about large-scale routing incidents when they occur.

Barriers to Broadcasting on the Internet

Citizen Lab and Canada Centre for Global Security Studies Visiting Research Fellow in International Broadcasting Karl Kathuria wrote an article discussing the issues facing broadcasters online.