The 2020 presidential election was called the most secure in U.S. history, largely due to efforts to protect the nation’s different physical and cyber infrastructure. This was a triumph considering the physical, cyber, and even human assets that make up the election infrastructure have been and continue to be susceptible to threats. In 2020, many states adopted measures to mitigate threats to physical and cyber election assets like voting equip- ment, ballots, and facilities, as well as computer services and databases that store voter information. For example, states with close results in the 2020 presidential race had paper records of each vote, which gave them the ability to go back and count each ballot if necessary. Other measures such as pre-election testing, state and federal cer- tification of voting equipment, and increased collaboration between election officials and their security partners helped provide additional assurance that the 2020 election results were legitimate.