History of Election security in Timeline

By Popular Timelines Editorial Team · Updated: July 14, 2026

Election security encompasses the measures taken to ensure the integrity, accuracy, and legitimacy of democratic processes. Key pillars include physical protection of voting machines and ballots, robust cybersecurity protocols to prevent unauthorized access or tampering with digital records, and rigorous auditing procedures such as risk-limiting audits to verify results. Furthermore, election security involves maintaining accurate voter registration databases to prevent fraud while ensuring eligible voters have unimpeded access to the polls. Transparency is maintained through bipartisan oversight, public testing of equipment, and clear chain-of-custody protocols for handling sensitive election materials. In an era of heightened digital threats, protecting against foreign interference, misinformation campaigns, and ransomware attacks has become a primary focus. By integrating technological safeguards with administrative oversight, election security aims to bolster public trust and guarantee that every legal vote is accurately counted and protected from manipulation.

2002: Enactment of the Help America Vote Act

In 2002, the Help America Vote Act was passed, mandating that all U.S. states with voter registration systems establish a single, uniform, centralized, and interactive computerized statewide voter registration list (VRDB) to improve election security and accuracy.

2016: U.S. Presidential Election Interference

During the 2016 U.S. Presidential Election, foreign entities engaged in activities aimed at undermining trust in the American democratic system through cyber espionage and propaganda campaigns.

2016: Breach of Illinois Voter Registration System

During the 2016 election, hackers successfully breached the voter registration system in the state of Illinois, though there was no evidence that any individual votes were altered.

2016: Illinois VRDB Breach

During the 2016 general election, the Illinois voter registration database (VRDB) was successfully accessed by Russian actors, as confirmed with high confidence by the Department of Homeland Security. Although the attackers viewed voter registration records, they were unable to edit any information. Consequently, the state took the database offline for nearly two weeks to secure the system, ensuring no records were compromised in the 2016 incident.

2016: Russian Interference in U.S. Elections

In 2016, Russia attempted to interfere in the U.S. presidential election, which experts noted was part of a larger, decade-long pattern of similar cyber activities conducted by Kremlin-backed hackers across multiple European nations including Ukraine, Bulgaria, Estonia, Germany, France, and Austria to undermine public trust.

2016: Election Interference and Hacking

In 2016, national security experts identified significant cyber threats to democratic operations, noting that Russia was just one of several actors, including North Korea, Iran, and organized criminals, capable of infiltrating election infrastructure.

September 22, 2017: DHS Notification of Election Targeting

On September 22, 2017, the U.S. Department of Homeland Security informed 21 states that their election systems had been targeted by Russian-backed hackers during the previous year's election cycle.

October 2017: DEFCON Voting Village Report Publication

In October 2017, DEFCON released an official report documenting the findings and vulnerabilities discovered during their "Voting Machine Hacking Village" held earlier that year, providing evidence of how various U.S. election equipment could be compromised.

2017: Center for American Progress Election Security Recommendations

In 2017, the Center for American Progress published a report detailing nine specific solutions designed to help states improve and secure their election infrastructure.

2017: DHS Confirmation of Foreign Election Interference

In 2017, the Department of Homeland Security officially confirmed that a foreign adversary conducted a multi-faceted campaign during the 2016 election, which involved accessing U.S. state and local electoral systems and spreading social media propaganda.

2017: Election Infrastructure Designated as Critical Infrastructure

In early 2017, Secretary of Homeland Security Jeh Johnson officially designated election systems as "critical infrastructure." This 2017 decision allowed storage facilities, polling places, vote tabulation locations, and related information and communications technology—including voter registration databases and voting machines—to receive prioritized cybersecurity support and federal protections.

September 27, 2018: Release of 2018 Voting Village Findings

On September 27, 2018, organizers held a press conference in Washington, DC, to officially issue a comprehensive report detailing the security findings gathered during the Voting Village event held earlier that year.

2018: Center for American Progress Election Security Assessment

In 2018, the Center for American Progress released an assessment of US state election security, revealing that no state achieved an 'A' grade and forty states received a grade of C or lower based on seven security metrics.

2018: Inception of Biennial VRDB Security Survey

In 2018, the Center for Election Innovation & Research initiated a biennial survey to track and evaluate the security practices regarding state voter registration databases (VRDB), finding a trend of robust and evolving security protocols across the nation.

2018: Heightened Security Warnings

Throughout 2018 and the years following, experts and leaders issued warnings that the vulnerability of election and voting infrastructure to hacking attempts, similar to the 2016 incidents, remained a high probability.

2024: 2024 Election Security Policy and Practice Assessment

In 2024, an assessment was conducted regarding various policies and practices implemented to bolster election security, providing a summary of the standards observed throughout the year.

2024: Vulnerability Found in Georgia Voter Cancellation Portal

In 2024, cybersecurity researcher Jason Parker identified a significant security flaw in Georgia's voter cancellation portal. The vulnerability allowed individuals to bypass mandatory driver's license requirements to cancel voter registrations using only minimal, publicly accessible data, highlighting critical concerns regarding the integrity of election infrastructure in 2024.

2024: 2024 Voting Village Security Vulnerability Disclosures

In 2024, participants at the Voting Village identified numerous security flaws within voting machines utilized in the United States, highlighting concerns regarding the delayed response from vendors to address these vulnerabilities. Expert Harri Hursti emphasized that foreign adversaries, specifically China and Russia, are likely already aware of these security gaps and are actively leveraging them.