Russia’s Internet Research Agency (IRA) launched an extended attack on the United States by using computational propaganda to misinform and polarize US voters. This report provides the first major analysis of this attack based on data provided by social media firms to the Senate Select Committee on Intelligence (SSCI).

Government cybersecurity paradigms that focus heavily on securing critical infrastructure should shift and expand to consider a much wider array of connected users and devices, types of actors, and types of risk. From compromises of some of the world’s largest corporations, to critical vulnerabilities in widely used open source software, to exponential growth in the...