Rafal Rohozinski is a Canadian expert and practitioner active in the fields of information security, cyber warfare, and the globalization of armed violence. Rohozinski is a founder and principal investigator of two significant cyber research initiatives: the Infowar Monitor, a joint project between The SecDev Group and the Citizen Lab, Munk Centre for International Studies, University of Toronto, which examines and documents emerging trends in cyber warfare; and, the OpenNet Initiative, a collaboration with the Citizen Lab, Berkman Center for Internet and Society at Harvard Law School the Advanced Network Research Group at Cambridge University (now the SecDev Group) and the Oxford Internet Institute, which documents patterns of Internet censorship worldwide. He is a principal investigator and co-author of the Ghostnet study examining Chinese cyber-espionage. 
Rohozinski is also behind several companies active in the cyber, security and development domains. He is the CEO of the SecDev Group, a Canadian operational consultancy focused evidence based research in countries and regions at risk from violence and insecurity, which developed the concept of armed violence for OECD; and Psiphon, a provider of Web content delivery services in countries that censor the Internet. He is also a principal and director of Secdev.cyber, a cyber-security start-up. He was formerly the director of the Advanced Network Research Group, Cambridge Security Programme, University of Cambridge (2000-2008), a Ford Foundation Research Scholar of Information and Communication Technologies (2002-2004), and a senior visiting fellow at the International Development Research Centre (Canada), where he developed conceptual approaches to the studying the telegeography of conflict zones, including case study of the Israeli-Palestinian conflict.  Between 2007 and 2011 he served on the Estonian E-government academy.
Rohozinski is the author of numerous studies and published articles on topics relating to the security and development dimensions of the information revolution including two studies for the Centre for Strategic Leadership, US Army War College: Shifting Fire examining "information effects" in counterinsurgency and stability operations, and New Media and the Warfighter (the latter based on a case study of the 2006 Hizbullah-Israeli conflict). Rohozinski is the co-editor and contributor to Access Denied: the Practice and Policy of Global Internet Filtering (MIT press) and a follow-up volume entitled Access Controlled examining the emergence of complex information controls in the Organization for Security and Co-operation in Europe countries, including an analysis of strategic cyber-war dimensions of the Russian-Georgian conflict.
Rohozinski’s research and professional activities focus on the nexus of social and technological networks. His work was foundational to the fusion methodology, that underpins the research conducted by OpenNet Initiative and the Infowar Monitor as well as the commercial work undertaken by the SecDev Group and Secdev.cyber.
- Infowar Monitor FAQ: Principal Investigators
- About the ONI: Principal Investigators
- The State Of Cyber Security: When Cyber Terrorism Becomes State Censorship
- Vast Spy System Loots Computers in 103 Countries
- Unmasking ‘GhostNet’, NPR Interview with Rohozinski and Deibert
- Major cyber spy network uncovered
- Ghostnet Buster
- Armed Violence Reduction: Enabling Development
- Ottawa exec's company aims to bring down 'Great Firewall of China'
- Psiphon inc team
- Advanced Network Research Group, Cambridge Security Programme
- Mapping the Palestinian Web Space, Sept - Nov 2007
- Estonian E-Government Academy: Board members
- Shifting Fire: Information Effects in Counterinsurgency and Stability Operations
- Access Denied: The Practice and Policy of Global Internet Filtering
- A New Breed Of Hackers Tracks Online Acts of War
- Tracking Cyberspies Through the Web Wilderness