"In November 2019, protests broke out across Iran over a fuel price hike; authorities responded with violence and repression. They also disconnected millions of Iranians from the Internet. Iran’s November shutdowns were unprecedented in length and reach. On a vast scale, they cut people off from vital information and from each other. Authorities subjected protesters to violent assaults without the exposure that access to the Internet enables. The ability to conduct these shutdowns is the culmination of many policies, technological developments, and systems of centralised control that permeate Iran’s system, and especially its Internet governance. This report takes a close look at the Internet shutdowns that accompanied the protest period from 15 November to 27 November, as well as the mechanisms, infrastructure, law, and policies that enabled this kind of disconnection. It then looks at the aftermath of the protests and the outlook for Internet governance and connectivity in Iran." (Executive summary)