
The closure of the inquiry was advocated by the President of the Court, Edson Fachin, as a way to cool down the internal crisis in the court.
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The inquiry was opened seven years ago to investigate attacks and threats against the STF.
Opened 7 years ago to investigate attacks, threats and fake news against the Federal Supreme Court (STF), the so-called fake news inquiry has accumulated, over the years, decisions that expanded the scope of the investigation and generated controversies inside and outside the Court.
Reported by Minister Alexandre de Moraes, the process returned to the center of debate this week, amid the internal crisis at the STF and the discussion about closing the investigation.
In April 2019, Moraes ordered the removal of the report "My father's friend's friend", published by Crusoé magazine and reproduced by the website O Antagonista. The decision generated a strong reaction from press entities and legal experts, who classified it as prior censorship.
Days later, the decision was revoked. To this day, this episode is often cited as one of the most controversial moments of the inquiry.
The investigation was also used to block influencers' accounts on social networks and determine searches, seizures and breaches of confidentiality.
The investigation led to the blocking of social media accounts, searches and seizures and breaches of confidentiality of several political influencers and activists.
Among the best-known cases were investigations against Allan dos Santos, Oswaldo Eustáquio and other influencers linked to former president Jair Bolsonaro (PL).
In this report, remember episodes that marked the investigation:
Deputy arrest
In 2021, then federal deputy Daniel Silveira was arrested after releasing a video threatening STF ministers and defending authoritarian measures against the Court.
Although the process that resulted in the conviction followed its own path, the investigation originated in the context of investigations related to the fake news investigation and its consequences.
Source secrecy
More recently, another case that gained relevance was that of journalist Luís Pablo, a journalist who maintains a blog in Maranhão and who published reports on the alleged use of an official vehicle linked to the Court of Justice of Maranhão by minister Flávio Dino and his family.
He ended up being the target of a search and seizure authorized by Alexandre de Moraes as part of the investigation.
The investigation mentions suspicions of persecution ("stalking") and illegal monitoring of authorities.
Investigation against party
Another case that gained repercussion, in 2022, was that of the Workers' Cause Party (PCO).
The acronym came under investigation in the inquiry after publishing harsh criticisms against STF ministers, especially Alexandre de Moraes.
The party even had social media profiles suspended by court order.
Ministers' data leaks
It was also within the fake news investigation that Moraes began investigating access and leaks of confidential tax data from STF ministers and their families.
The PF even carried out search and seizure warrants against public servants in three states.
Moraes also decreed the breach of bank secrecy of those being investigated with the aim of discovering whether the information was being sold.

The MPF appealed to the TRF-1 to demand that the Union, State of Acre and the Municipality of Rio Branco remove tributes to agents of the military dictatorship from public property, proposing the creation of technical commissions and a Memory Center in the capital of Acre.

Parents who expelled their teenage son from home after revealing his sexual orientation were ordered by the Court in Jaguaruna (SC) to pay compensation of R$100,000 and delete discriminatory posts.

Muriaé councilor, Antônio, was sentenced to almost four years in open prison after documents and minutes revealed incompatible travel schedules. The defense informed that it will appeal, and the City Council is awaiting an official summons.

Lawyer Kelen Cristina Ribas da Silva received an urgent protective measure in Curitiba after being attacked by her client's ex-partner in a child support case. This is the first time that the Maria da Penha Law has been applied in this way in Paraná.

For the first time in almost 11 years, Samarco and three former managers were criminally convicted for the collapse of the Fundão dam, in Mariana (MG), which occurred in 2015, following a decision by the TRF6.

Former judge Robson José dos Santos, admitted due to racial quotas, was dismissed by the Rondônia Court of Justice in February 2026 after the investigation of 12 disciplinary infractions. The defense challenges the CNJ alleging racism, irregularities and persecution.