Electronic vote machine technician configuring Brazilian voting machine

Technician configures a Brazilian electronic voting machine at twilight, ensuring the security and transparency of the electoral system.

About this subject

The Brazilian electronic voting machine, in use since 1996, is one of the most advanced voting systems in the world. Developed by the Superior Electoral Court (TSE) in partnership with the Brazilian Army, it was designed to ensure speed, security, and secrecy of the vote. The technician in the image performs the pre-configuration, which includes installing the voting software, integrity tests, and verification of security seals.

The preparation process takes place in a controlled environment, usually at electoral offices or designated locations. Each machine is individualized by a unique code and stored in sealed cases until election day. Configuration also involves synchronization with the vote tabulation system, which consolidates votes in real time after polls close.

Brazil has held fully electronic elections since 2000, and the system has been audited by international bodies such as the Organization of American States (OAS). The machine features a voting display, numeric keypad, and a vote printer for verification, although the printed vote is not given to the voter. Security is reinforced by encryption and digital signatures.

Fun fact: the name "urna eletrônica" (electronic ballot box) was chosen to maintain familiarity with paper ballot boxes. The device has a 12-hour internal battery, allowing operation even without mains power. Over 150 million voters use the system every two years.

Frequently Asked Questions

How does the Brazilian electronic voting machine work?

The machine displays the candidate's name and photo on the screen. The voter types the candidate's number and confirms the vote. The vote is stored on an encrypted memory card and also printed for auditing, but the paper is not given to the voter.

Is the electronic voting machine secure against fraud?

Yes. The system has multiple security layers: encryption, digital signatures, physical seals, and public security tests conducted before elections. It is also audited by independent entities.

What is the battery life of the voting machine?

The internal battery lasts up to 12 hours, sufficient for a full day of voting, even in places without electricity.