Research News

Citizen Lab's latest research publications.

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.

The Canadian Connection: One Year Later

This is an update to our November 2011 report titledThe Canadian Connection: An investigation of Syrian government and Hezbullah web hosting in Canada, which examined the use of web servers based in Canada, the U.S., and European countries to host Syrian government websites and websites of the Lebanese political party Hezbullah. Our findings indicate that, while many of the websites we examined in 2011 have changed hosting providers, a number of Syrian government and Hezbullah websites still maintain an online presence through the services of North American and European web hosts.

Update on Information Controls in Ethiopia

Ethiopia remains a dangerous country in which to express dissent online. The recent conviction of a number of bloggers and journalists, combined with the country’s history of filtering critical political content online, demonstrates the restrictive nature of the country’s information environment. This blog post describes recent developments in the country and reports on the results of ONI testing conducted in September 2012.