Of all the political ideas to defend themselves before the court of human history, few have proven as potent and as compelling as that of electoral democracy. Yet in recent years, electoral democracy has once more come under challenge, facing off against popular discontent, revisionist governments, and—most significantly—the rise of new media and digital technologies. These technologies have at times demonstrated exhilarating promise, but they have also created new vulnerabilities that malicious actors have proven able and willing to exploit. This Issue Brief aims to provide a taxonomy of different forms and levels of state involvement in election interference, giving states a common lexicon to respond to cyber threats. It is not enough to simply speak of “hacking the vote”—and hopefully, by providing these initial terms, this report will spur a wider discussion on defining actions and sponsorship in this domain.