| "Psiphon is a web proxy designed to help Internet users securely bypass the content-filtering systems used to censor the internet by governments in places like China, North Korea, Iran, Syria, Myanmar, Saudi Arabia, United Arab Emirates, Vietnam, Pakistan, Belarus and others. Psiphon was originally developed by the Citizen Lab at the University of Toronto, building upon previous generations of web proxy software systems, such as the "SafeWeb" and "Anonymizer" systems.
In 2008 Psiphon was spun off as a Canadian corporation that continues to develop advanced censorship circumvention systems and technologies. Psiphon and the Citizen Lab at the Munk School of Global Affairs, University of Toronto occasionally collaborate on research and other projects, through the Psi-Lab partnership.
Psiphon currently consists of two separate but related open source software projects:
2.X and 3.X - A managed proxy cloud implementation by Psiphon Inc.
1.X - The original home based server software released by the Citizen Lab under the GNU General Public License but no longer supported by Psiphon Inc. or the Citizen Lab.
Anyone who wants to get the latest version of Psiphon can send an email to email@example.com. And then after a few seconds he or she will receive an email from Psiphon Responder containing the download link." --Wikipedia