Electoral Court carries out audit of electronic voting machines in Presidente Prudente for the 2026 elections

This Thursday (1st), the Electoral Court carried out an audit of the electronic voting machines that will be used in Presidente Prudente (SP) during the elections, which take place on Sunday (4).

The procedure allows you to monitor and verify preparation steps for the equipment that will be used in voting.

The activities were carried out in the 101st Electoral Zone and the 402nd Electoral Zone of Presidente Prudente. The duration was 30 minutes.

According to the Electoral Court, the verification of the integrity and authenticity of the electoral systems installed in the polls, as well as the checking of the data contained in the machines, can be carried out by sampling up to 6% of the ballot boxes prepared in each electoral zone.

Elections 2026; electronic voting machine; voting — Photo: Aline Costa/TV TEM

To check the security of the ballot boxes, representatives of the entities were able to check:

the integrity and authenticity of electoral systems;

the regularity of the procedures adopted for generating media and preparing the ballot boxes;

the ballot box data through demonstration;

monitor and verify the affixing of the physical seal to the ballot boxes.

Security of electronic voting machines

The equipment is chosen randomly by representatives of the supervisory entities, who may use verification programs developed by the Superior Electoral Court (TSE) or by the institutions themselves.

The ceremony is public and could be attended by any citizen. However, the rule considered that the public should speak directly to the technicians and employees of the Electoral Court during the activities.

After the procedures, the electronic ballot boxes are stored and transported to the voting locations the day before the election, on Saturday (3).

It is not possible to use the equipment before Sunday (4), the date of the 1st round, because the systems are programmed to only allow them to work during the voting day and time.

Elections 2026; electronic voting machine; voting — Photo: Aline Costa/TV TEM

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