What Is Electronic Voting?

Electronic voting is the use of electronic technology at one or more stages of the electoral process, including voter registration, ballot marking, vote capture, tabulation, and results transmission. The term covers a broad range of implementations, from optical scan systems that read paper ballots electronically to direct-recording electronic (DRE) machines that capture votes entirely in digital memory. Internet voting, kiosk-based systems, and hybrid paper-electronic ballot-marking devices are also grouped under the electronic voting category. The field intersects computer science, cryptography, human-computer interaction, and election administration, requiring engineering solutions that satisfy both technical security requirements and the procedural norms of democratic accountability.

Electronic voting technology entered widespread deployment in the United States following the Help America Vote Act of 2002, which allocated federal funding for jurisdictions to replace punch card and lever voting equipment. Similar transitions occurred in other countries at varying paces and with varying technology choices.

Voting Technologies and System Types

Optical scan systems record votes by sensing marks made by voters on paper ballots, which are then read by a scanner at the polling place or central counting facility. Because the original marked paper ballot is retained, optical scan systems provide a physical audit record independent of the electronic tally. DRE machines display ballot choices on a screen, accept input through buttons or a touchscreen, and store selections in internal memory, producing no independent paper record unless fitted with a voter-verified paper audit trail (VVPAT) printer. Ballot-marking devices (BMDs) assist voters, including those with disabilities, in marking a paper ballot electronically before submitting the paper for scanning. The Verified Voting equipment database catalogs voting equipment in use across U.S. jurisdictions by type and vendor.

Security and Auditability

Electronic voting systems are subject to attacks on hardware, software, and network interfaces, as well as insider threats from election officials or equipment vendors. Researchers have demonstrated vulnerabilities in DRE systems that could allow malicious code to alter vote tallies without detection when no VVPAT is present. Risk-limiting audits (RLAs), a statistical method for checking electronic results against paper records, have been adopted in several U.S. states as a post-election verification mechanism. Cryptographic approaches, including end-to-end verifiable (E2E) systems, allow each voter to confirm that their ballot was recorded and counted without revealing how they voted. The Congressional Research Service report on DRE controversy and safeguards provides a policy-level overview of the security tradeoffs among system types.

Standards and Certification

In the United States, the technical standards for voting systems are set by the U.S. Election Assistance Commission (EAC) through the Voluntary Voting System Guidelines (VVSG), which specify requirements for accuracy, security, usability, and accessibility. Testing against VVSG requirements is performed by accredited Voting System Test Laboratories (VSTLs). Internationally, standards vary considerably: some jurisdictions rely on national standards bodies, while others apply bespoke regulatory frameworks. The NIST voting systems standards program contributes technical research to the EAC's guideline development process, covering topics such as software independence, cryptographic protocol design, and usability testing methodologies.

Applications

Electronic voting is used across a range of electoral and organizational decision-making contexts, including:

• National and local government elections for candidate selection and referendum decisions
• Overseas and military voter participation through electronic ballot delivery and return
• Corporate shareholder meetings and proxy voting for publicly traded companies
• University and professional society governance elections
• Union elections and membership ratification votes subject to labor law requirements