IBOV 171,031.73 ▲ 1.85% IPSA 11,338.38 ▲ 0.89% IPC MEX 65,729.18 ▲ 2.14% MERVAL 2,913,184 ▲ 1.30% COLCAP 2,459.23 ▲ 0.61% BVL PERÚ 58,698.13 ▲ 2.60% USD/BRL5.14— 0.00% USD/MXN16.93▲ 0.14% USD/CLP914.28— 0.00% USD/COP3,044▲ 0.21% USD/PEN3.36▲ 0.04% USD/ARS1,499▼ 0.03% USD/UYU40.20▲ 1.52% USD/PYG5,996▲ 1.39% USD/BOB11.43▲ 0.51% USD/DOP58.61▼ 0.07% USD/CRC450.05▲ 1.95% USD/GTQ7.62▲ 2.13% USD/HNL26.81▲ 1.55% USD/NIO36.62— 0.00% USD/VES782.70▼ 0.13% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD 157.28 — 0.00% USD/TTD6.71▲ 0.82% EUR/BRL6.00▲ 0.03% BRENT 88.88 ▼ 0.03% WTI 83.11 ▼ 0.11% IRON ORE 161.91 — — COPPER 6.61 ▲ 0.03% GOLD 4,461 ▲ 1.78% SILVER 65.59 ▲ 1.26% SOY 1,184 ▲ 3.20% CORN 480.50 ▲ 10.02% WHEAT 655.00 ▲ 3.93% COFFEE 317.25 ▼ 5.51% SUGAR 16.43 ▼ 1.79% ORANGE JUICE 138.55 ▼ 0.47% COTTON 85.03 ▲ 2.33% COCOA 5,719 ▲ 3.18% BEEF 223.60 ▼ 3.93% CATTLE 339.10 ▼ 3.16% LITHIUM 75.20 ▲ 1.47% PETR4 41.64 ▼ 0.05% VALE3 72.97 ▲ 0.83% ITUB4 38.60 ▼ 1.03% BBDC4 16.85 ▲ 0.36% ABEV3 14.89 ▼ 0.80% BBAS3 19.37 ▲ 0.47% B3SA3 14.26 ▼ 0.21% WEGE3 47.59 ▲ 0.49% PRIO3 59.14 ▼ 0.19% SUZB3 41.33 ▲ 2.35% RENT3 34.68 ▼ 0.09% AZZA3 15.89 ▼ 2.63% CSAN3 3.22 ▼ 1.83% RAIZ4 0.25 — 0.00% PCAR3 2.75 ▼ 0.36% GMAT3 3.65 ▼ 1.08% PSSA3 48.13 ▼ 0.54% CVCB3 1.33 ▼ 2.92% POSI3 3.36 ▲ 2.44% SLCE3 13.34 ▲ 0.30% NATU3 8.14 ▼ 0.73% IBOV 171,031.73 ▲ 1.85% IPSA 11,338.38 ▲ 0.89% IPC MEX 65,729.18 ▲ 2.14% MERVAL 2,913,184 ▲ 1.30% COLCAP 2,459.23 ▲ 0.61% BVL PERÚ 58,698.13 ▲ 2.60% USD/BRL 5.16 ▲ 0.01% USD/MXN 17.06 ▼ 0.24% USD/CLP 913.98 ▲ 0.04% USD/COP 3,140 ▲ 0.03% USD/PEN 3.36 ▼ 0.66% USD/ARS 1,493 ▲ 0.10% USD/UYU 40.27 ▲ 1.24% USD/PYG 5,939 ▲ 1.68% USD/BOB 11.64 ▼ 0.76% USD/DOP 58.34 ▲ 1.25% USD/CRC 445.92 ▲ 0.89% USD/GTQ 7.62 ▲ 2.21% USD/HNL 26.79 ▲ 1.57% USD/NIO 36.62 ▲ 0.69% USD/VES 762.44 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.28 — 0.00% USD/TTD 6.70 ▲ 0.61% EUR/BRL 5.95 ▲ 1.01% BRENT 88.88 ▼ 0.03% WTI 83.11 ▼ 0.11% IRON ORE 161.91 — — COPPER 6.61 ▲ 0.03% GOLD 4,461 ▲ 1.78% SILVER 65.59 ▲ 1.26% SOY 1,184 ▲ 3.20% CORN 480.50 ▲ 10.02% WHEAT 655.00 ▲ 3.93% COFFEE 317.25 ▼ 5.51% SUGAR 16.43 ▼ 1.79% ORANGE JUICE 138.55 ▼ 0.47% COTTON 85.03 ▲ 2.33% COCOA 5,719 ▲ 3.18% BEEF 223.60 ▼ 3.93% CATTLE 339.10 ▼ 3.16% LITHIUM 75.20 ▲ 1.47% PETR4 41.64 ▼ 0.05% VALE3 72.97 ▲ 0.83% ITUB4 38.60 ▼ 1.03% BBDC4 16.85 ▲ 0.36% ABEV3 14.89 ▼ 0.80% BBAS3 19.37 ▲ 0.47% B3SA3 14.26 ▼ 0.21% WEGE3 47.59 ▲ 0.49% PRIO3 59.14 ▼ 0.19% SUZB3 41.33 ▲ 2.35% RENT3 34.68 ▼ 0.09% AZZA3 15.89 ▼ 2.63% CSAN3 3.22 ▼ 1.83% RAIZ4 0.25 — 0.00% PCAR3 2.75 ▼ 0.36% GMAT3 3.65 ▼ 1.08% PSSA3 48.13 ▼ 0.54% CVCB3 1.33 ▼ 2.92% POSI3 3.36 ▲ 2.44% SLCE3 13.34 ▲ 0.30% NATU3 8.14 ▼ 0.73%
since 2009
Monday, August 24, 2026

Brazil Life & Society

Hacked for Five Days, Electronic Ballot Boxes in Brazil Show Only Superficial Flaws

By · December 1, 2019 · 3 min read

Daily Brief

The morning intel from across Latin America. Free.

By subscribing you agree to our privacy policy. We never share your email.

RIO DE JANEIRO, BRAZIL – A group of experts from the Federal Police found two superficial glitches in the electronic ballot box system during the Public Security Test week, reported on Friday, November 28th, the Superior Electoral Court (TSE).

The Superior Electoral Court hosted 25 academics, students and experts for the Public Security Test. (Photo: Internet Reproduction)
One-stop reference
Company Intelligence
Every listed company in Latin America — financials, ownership and structure for 1,450+ companies across 26 exchanges, in one place.
Browse the directory →
RT
Ask Rio Times
Latin American markets, currencies and companies.
Open the full Ask Rio Times →

According to the court, the flaws detected do not affect the security of the electoral process.

According to the TSE’s Information Technology Secretary, Giuseppe Janino, the experts managed to get into the system that feeds voter and candidate data into the electronic ballot box thereby breaching a security wall.

According to Janino, they also succeeded in changing some words or expressions – such as changing the “ballot paper” to “paper” inscription, for instance – but were unsuccessful in their attempt to change candidate or voter names.

The secretary explained that, for the public testing week, the TSE removes barriers so that researchers are able to advance and uncover vulnerabilities. However, he pointed out that, even so, no serious flaws were detected.

“The ballot box features 30 digital walls. The TSE removes these barriers for the test, provides access to data, algorithms. They can easily move forward. They found vulnerabilities, but there is no risk. Even so, we will work to correct them and strengthen the security of the ballot box,” said the secretary after the results were released.

The public tests began last Monday, November 25th. Twenty-five researchers from different parts of the country, including federal police, academics, students and technology professionals, spent the week looking for vulnerabilities in the system.

It was the fifth time that the TSE conducted these tests; in prior editions, the specialists also found vulnerabilities that were later corrected.

The 25 researchers worked in seven groups and, according to the TSE, were unable to alter the ballot papers; tried to use artificial intelligence to access the system but failed; found no vulnerabilities in the cryptographic keys and libraries (in the last test, vulnerability had been detected); mapped routine algorithms and ballot box patterns, but failed to break privacy or tamper with data; failed to break into the network system; tried to use electric pulses to pick up typing from the ballot box, and thus trace the vote, but could not (in the last test they had spotted a flaw, but the keyboards were shielded).

The two flaws detected by the Federal Police experts were checked by the group that submitted the project to retrieve content from the system, attempting to enter data into the ballot box and extracting data from the tallying of votes.

“This is the fifth time this event has been held, with the aim of improving the electronic voting system and checking whether the resources implemented in the ballot box meet the security requirements. And to correct any vulnerabilities that may be detected,” said Justice Rosa Weber, president of the TSE.

The group was able to change superficial data but failed to alter candidate or voter names. (Photo: Internet Reproduction)

According to her, “it’s time to open up the security systems in the eyes of the scientific community, parties, students, it’s a call for them to act as hackers in order to detect flaws in the integrity of the ballot box”. According to Weber, the tests will ensure safe elections in 2020.

The result released on Friday, which found the two vulnerabilities, is only partial. The TSE will submit a final report on December 10th.

TSE experts will work to correct the flaws, and a new round of tests will be conducted next year.

Source: Globo

This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error

LatAm Markets: Live Signals → — real-time movers, turnover leaders and FX across Latin America.

Read More from The Rio Times

The Rio Times · Power Map
See who really holds power in Latin America
Click to open the Power Map

Rotate for Best Experience

This report is optimized for landscape viewing. Rotate your phone for the full experience.