People we talk to inside Iran say that almost no proxies are usable any more. Freegate, a Chinese anti-censorship application that makes use of networks of open proxies, has proven popular in Iran. But this week, it, too, has been experiencing problems. Many popular applications, like Yahoo! Messenger, have stopped working. The authorities are said to be using power interruptions as a cyberweapon, causing brief outages during rallies that cause computers to reboot, just as people are trying to upload images and video. The net result, as Arbor’s excellent analysis shows, has been a drastic reduction in inbound traffic on filtered ports since the election.

James Cowie, “The Proxy Fight for Iranian Democracy”