Iran has adopted one of the world’s most substantial Internet censorship regimes...Iran has recently acknowledged, as our testing confirms, that it uses the commercial filtering package SmartFilter – made by the US-based company, Secure Computing – as the primary technical engine of its filtering system...Secure Computing has responded to questions about the use of its software in Iran with the following statement: "Secure Computing has sold no licenses to any entity in Iran, and any use of Secure's software by an ISP in Iran has been without Secure Computing's consent and is in violation of Secure Computing's End User License Agreement..." ...The statement does not...address the extent to which the adoption of SmartFilter and its updated block list for "non-profit and advocacy organizations" by additional governments (such as Saudi Arabia...) is part of Secure Computing's market.