The 2016 U.S. presidential election was preceded by unprecedented cyberattacks and produced a result that surprised many people in the U.S. and abroad. Was it hacked? To find out, we teamed up with scientists and lawyers from around the country—and a presidential candidate—to initiate the first presidential election recounts motivated primarily by e-voting security concerns. In this talk, we will explain how the recounts took place, what we learned about the integrity of the election, and what needs to change to ensure that future U.S. elections are secure.