Election security must resolve conflicting demands. It must convince voters that the final tallies are correct while ensuring this evidence does not link voter identities to their votes. Voting systems must be simple use while being inexpensive to purchase and operate for voting officials. To make security even more difficult, voting systems must be resistant to attacks from nation-state adversaries and others, without requiring the same sophistication on the part of the defenders. This webinar will explore the research undertaken by Dan Wallach, Rice professor of computer science, to identify vulnerabilities in existing voting systems, and how security for these systems can be improved.