Brazil is raising serious concerns about possible foreign interference in its presidential election — and officials are pointing to two of the world’s biggest powers.

Brazilian intelligence officials briefed representatives from France and Germany this month about alleged interference by both the United States and Russia ahead of Brazil’s October 4 election, according to sources and documents reviewed by Reuters.

Officials from Brazil’s intelligence agency, known as ABIN, reportedly told the European delegation that they believed interference from both countries existed.

However, important details remain unclear.

Brazilian officials reportedly characterized alleged U.S. involvement as ranging from the use of legal and political pressure to actions they considered more overt. Reuters reported that officials provided no details about the alleged Russian interference.

Neither allegation has been independently established by the reporting.

Why Brazil Is Worried About the U.S.

Concerns over American involvement have been building for months.

President Luiz Inácio Lula da Silva has publicly warned the Trump administration against interfering in Brazil’s election.

Earlier this year, Brazil also denied visa requests for two U.S. officials who Brazilian authorities said intended to visit the country and question the integrity of its electoral system.

The U.S. State Department rejected those accusations at the time, describing claims that it was attempting to undermine Brazil’s election as baseless.

The political backdrop makes the dispute even more sensitive.

Lula is seeking another term against Senator Flávio Bolsonaro, the son of former president Jair Bolsonaro and a political ally of U.S. President Donald Trump.

Cyberattacks Are Increasing Too

Brazilian authorities are also watching the country’s digital infrastructure closely.

A senior Brazilian cyber official told Reuters that cyberattacks in the country have nearly doubled compared with 2025, while hacking and phishing attempts targeting the president’s office have also increased.

The official described some of the activity as election-related, although the reporting does not establish that those attacks originated from the United States or Russia.

French and German officials visited Brasília from September 9 to 11 as part of a broader European delegation discussing digital regulation, disinformation and preparations for the 2026 elections.

With Brazilians heading to the polls on October 4, concerns about outside influence are adding another layer of tension to an already closely watched presidential race.

For Latin America’s largest country and economy, the question now isn’t only who Brazilians choose to lead them.

It’s whether Brazil can keep outside powers from influencing that choice.