Voting Village·21 min
Susan Lerner
Susan Lerner reviews the legal challenge in Common Cause NY v. Kosinski against the ES&S ExpressVote XL over barcode vote encoding and voter verifiability laws.
voting-machinesexpressvotepolicy+2
DEF CON 33/Voting Village across years
Voting Village DC33
Las Vegas Convention Center · 8–10 August 2025 · 17 talks
DEF CON 33 Voting Village features research, symposium panels, and hands-on evaluations of election technology and physical voting systems. Sessions cover physical security of voting terminals, statistical Risk-Limiting Audits, ballot marking devices, legal safe harbors under the DMCA, and lessons from landmark state security reviews.
1–17 of 17 talks
Voting Village·29 min
Susan Greenhalgh
Evaluates the effectiveness, rigor, and reliability of post-election audits conducted across seven closely contested swing states following the 2024 election.
voting-machinespost-election-auditspolicy+2
Voting Village·44 min
Moore · Young · Baggett
Applies the military CARVER targeting and vulnerability analysis matrix to evaluate systemic risks and physical attack vectors across the US election system.
voting-machinescritical-infrastructurethreat-modeling+2
Voting Village·55 min
Tori Noble
Breaks down the Digital Millennium Copyright Act (DMCA) Section 1201 security research exemptions that protect independent voting system audits at the Voting Village.
voting-machinesdmcapolicy+2
Voting Village·46 min
Drew Springall · Davis · Marks
Demonstrates real-time ballot manipulation on the Dominion ImageCast X touchscreen terminal and explains why recovering from election definition tampering is daunting.
voting-machinesballot-marking-deviceshardware+2
Voting Village·44 min
Ron Rivest
Turing Award winner Ron Rivest explains software independence and evidence-based elections as foundational principles for securing democratic processes.
voting-machinescryptographysoftware-independence+2
Voting Village·34 min
Drew Springall
Reviews publicly documented physical security controls and tamper-evident seals on deployed voting systems, exposing critical weaknesses in hardware defenses.
voting-machinesphysical-securitytamper-evidence+2
Voting Village·56 min
Debra Bowen
Former California Secretary of State Debra Bowen presents the history and enduring significance of the Top-to-Bottom Review (TTBR) and post-election audit working groups.
voting-machinesttbrhistory+2
Voting Village·28 min
John Odum
Explains why End-to-End Verifiability (E2E-V) fails to protect online voting systems against client-side endpoint malware and server infrastructure tampering.
voting-machinescryptographyonline-voting+2
Voting Village·36 min
Michael Specter
Examines the systemic security, cryptographic, and client-side malware risks of internet voting in commercial and public election deployments.
voting-machinesonline-votingappsec+2
Voting Village·15 min
Miracle Owolabi
Advocates for expanding legal safe harbor protections for election security researchers globally, drawing on lessons from research barriers in Nigeria.
voting-machinesvulnerability-disclosurepolicy+2
Voting Village·29 min
Debra Bowen · Matt Blaze · Clark · Hoke · Mulligan
Core researchers and public officials reflect on California's landmark Top-to-Bottom Review (TTBR) and Ohio's EVEREST study, evaluating their legacy for election security.
voting-machinesttbrhistory+2
Voting Village·28 min
Marnie Mahoney
Examines regulatory and certification failures surrounding Ballot Marking Devices, focusing on barcode vote encoding and ballot image discrepancies.
voting-machinesballot-marking-devicespolicy+2
Voting Village·58 min
Philip Stark
Election auditing pioneer Philip Stark details how Risk-Limiting Audits (RLAs) provide statistical verification of paper ballots while warning against auditing untrustworthy vote records.
voting-machinesrisk-limiting-auditsstatistics+2
Voting Village·11 min
Organizers welcome attendees to the DEF CON 33 Voting Village, introducing the symposium schedule, hands-on hacking labs, and voting machine targets.
voting-machinescommunityelection-integrity+2
Voting Village·58 min
Burbank · Susan Greenhalgh · Marks · Jefferson
Examines multi-state insider access schemes where voting machine software and system images were illicitly copied across Colorado, Georgia, Michigan, and Pennsylvania.
voting-machinesinsider-threatthreat-intelligence+2
Voting Village·27 min
Ian Patton
Chronicles the technical failures, security vulnerabilities, and recount challenges of Los Angeles County's $300M bespoke VSAP voting system.
voting-machinesvsaprecount+2