EXECUTIVE SUMMARY The manipulation of public opinion over social media platforms has emerged as a critical threat to public life. Around the world, a range of government agencies and political parties are exploiting social media platforms to spread junk news and disinformation, exercise censorship and control, and undermine trust in the media, public institutions, and science. At a time when news consumption is increasingly digital, artificial intelligence, big data analytics, and “blackbox” algorithms are being leveraged to challenge truth and trust: the cornerstones of our democratic society. In 2017, the first Global Cyber Troops inventory shed light on the global organization of social media manipulation by government and political party actors. This 2018 report analyses the new trends of organized media manipulation, and the growing capacities, strategies and resources that support this phenomenon. Our key findings are: 1. We have found evidence of formally organized social media manipulation campaigns in 48 countries, up from 28 countries last year. In each country there is at least one political party or government agency using social media to manipulate public opinion domestically. 2. Much of this growth comes from countries where political parties are spreading disinformation during elections, or countries where government agencies feel threatened by junk news and foreign interference and are responding by developing their own computational propaganda campaigns in response. 3. In a fifth of these 48 countries—mostly across the Global South—we found evidence of disinformation campaigns operating over chat applications such as WhatsApp, Telegram and WeChat. 4. Computational propaganda still involves social media account automation and online commentary teams, but is making increasing use of paid advertisements and search engine optimization on a widening array of Internet platforms. 5. Social media manipulation is big business. Since 2010, political parties and governments have spent more than half a billion dollars on the research, development, and implementation of psychological operations and public opinion manipulation over social media. In a few countries this includes efforts to counter extremism, but in most countries this involves the spread junk news and misinformation during elections, military crises, and complex humanitarian disasters. 3