Anti-Censorship Technologies
Nart Villeneuve
PHD Candidate, Senior Research Fellow
Citizen Lab , Munk Centre for International Studies
University of Toronto

Censorship Circumvention
 The use of censorship circumvention and
anonymity technology is global.
 There are a wide variety of anti-censorship
tools from which to choose.
 Knowing the threats one faces is critical to
determining which technology to use.

# of Censors Increasing

Corporate Censors

Exporting Censorship
 SmartFilter – Saudi Arabia, Tunisia, Oman,
Sudan, United Arab Emirates, and formerly in
Iran
 Websense Bluecoat – Yemen
 Fortinet – Myanmar/Burma