It’s go time. Tuesday’s midterm elections will be the first major test of the election security precautions that governments and companies have adopted following revelations of a wide-ranging Russian operation to influence the 2016 presidential election in favor of Donald Trump. As voters head to the polls, The Washington Post will be closely monitoring for any signs of cybersecurity issues, from reports of potential voting machine vulnerabilities to disinformation on social media. In tight races, even a minor cyberattack could have a major impact on the outcome of the election — or the perception of whether a race was fairly decided.