The role of the internet in Iran's recent unrest has been stunning; so too have been the regime's efforts to minimise it. Luckily for the government, Iran's networks are rigged for suppression, courtesy of Nokia and Siemens.
The core of the regime's online efforts is a process called deep packet inspection, which essentially scans nearly all internet traffic for offending material and can give authorities the ability to block the offending communications or, more importantly, identify where they came from. As you can imagine, this is quite a terrifying prospect for protesters, journalists and dissidents.
Here's how it happened: In 2008, the Iranian government contracted Nokia Siemens Networks, among others, to help update its communications infrastructure, predictably requesting power to monitor and control internet traffic. With the government's full monopoly on the industry and poor human rights record in full view, Nokia Siemens Networks obliged, installing a cutting-edge "monitoring center", which the WSJ calls one of the "most sophisticated" in the world.
Obviously Nokia and Siemens couldn't have foreseen this exact outcome, but honestly, what did they expect? [WSJ]