1 May 2021BrazilUnidentified death-record matching system
A Brazilian federal judge in the 4th federal region ordered the social security institute (INSS) to pay a retiree R$3,917.67 in moral damages after finding that his pension had been stopped by a failure of the institute's artificial intelligence system, according to a Federal Regional Court of the 4th Region (TRF4) news item relayed by the Brazilian Institute of Social Security Law on 30 September 2022. The judge explained that the benefit was suspended automatically on 1 May 2021 by an artificial intelligence command that captured data from the death-records system (Sisobi), and that the data used, the person's name and mother's name, were not enough to prevent the wrongful cessation. The retiree said the pension was his only source of income; he asked for reactivation and sent a handwritten declaration, and although he showed in person that he was alive, the benefit was restored only in January 2022. The judge wrote that the AI 'proved inefficient or unintelligent' in this case and that the INSS made him wait 226 days. Arrears were also ordered paid. Whether the INSS appealed is not reported.
Contextual tracker case Medium reported severity Lawsuit Filed
AI involvement supported · Causal attribution established · 2 sources, 1 underlying account · Added 02/11/2026
2024Event location unknownGemini (reported)
A civil court in Niterói, Rio de Janeiro state, ordered Google Brasil to pay a businessman R$20,000 in moral damages in a sentence dated 12 May 2025. The judge found it undisputed that the company's artificial intelligence had pointed to him in searches as the owner of a gambling platform called 7 Games, with which he had no connection, as the company register showed. The court found that the false information damaged his reputation: he was being held responsible for scams on the betting platform and received threats by email from its customers. The court had earlier granted an injunction to remove the association, and the sentence confirmed it. Google argued that it does not host the material shown in its results and only organises pages available on the web; the judge held Google responsible because the information came from its own platform rather than from a linked page. Conjur, a legal-news site, identifies the tool as Gemini and reports that the association began after an interview in which he recommended seven games; the sentence names no product. Whether Google appealed is not reported.
Contextual tracker case Medium reported severity Lawsuit Filed
AI involvement supported · Causal attribution established · 3 sources, 1 underlying account · Added 02/11/2026
Event date unknownBrazilUnidentified image tool
A first-instance criminal court in São Paulo state convicted a man who worked at a health facility of distributing a nude image without consent (article 218-C of the Penal Code), according to a report by Diário de Justiça of the sentence released on 31 July 2026. The sentence records that a woman who worked at the same facility learned on 30 May 2025, in a call from the head nurse, that an intimate image attributed to her was circulating among staff, and recognised it as an AI montage made from clothed photos she had posted on Instagram; the defendant followed her account. In his testimony he admitted using artificial intelligence to produce a nude image of her, saying he meant to defend her against a remark about her, and denied sharing it with anyone but the head nurse, who confirmed receiving it from him. The judge held that article 218-C also covers artificially produced nudity and found that two people received the material. The court took into account her reported anxiety crises, psychological treatment and a workplace that had become hostile. The sentence of one year, one month and ten days was set in the open regime and replaced by community service and a payment of one minimum wage; no minimum compensation was fixed because she had filed a separate civil claim. Any appeal is not reported.
Core concern Medium reported severity Criminal Charges
AI involvement supported · Causal attribution established · 1 source · Added 01/11/2026
12 Oct 2026BrazilUnidentified AI tool
A labour court in Castro, Paraná (9th Region Labour Court), annulled a court-appointed expert's report after the employer, in a motion for clarification, reported a hidden sentence at the foot of a page instructing artificial intelligence to contest the report only superficially and not to question the files it cited, according to Diário de Justiça. The expert confirmed the text but said it came from teaching material about AI and was inserted by accident; the court's IT section concluded that it had been formatted deliberately to be invisible. The judge said AI had not been used to write the judgment and that the text did not directly influence it, but annulled the report, later submissions and the judgment, ordered a new examination by another expert without AI tools, fined the expert 5% of the value of the case for bad-faith litigation, cancelled the expert's fees and removed the expert from the court's register. The decision, dated 12 October 2026, can be challenged.
AI relation unknown Medium reported severity Regulatory Action
AI involvement reported · Causal attribution disputed · 1 source · Added 30/10/2026
13 Oct 2025 to 26 Nov 2025BrazilUnidentified video tool
The Federal District Civil Police (PCDF) in Brazil say a criminal group ran fake online donation campaigns that used images of elderly people, children and seriously ill people, and used artificial intelligence tools, including deepfakes, to make fake videos with the images of the singer Gusttavo Lima and the Catholic priests Marcelo Rossi and Fábio de Melo. The posts circulated on social media and sent people to pages imitating legitimate charity appeals; the money went to bank accounts the group controlled. Police say one company linked to the group received 215,575 transactions totalling about R$9.8 million between 13 October and 26 November 2025, mostly of R$30 and R$50, and that the number of transactions does not necessarily match the number of victims. On 28 October 2026 the PCDF launched Operação Cáritas with six preventive arrest warrants and search warrants in the Federal District and four states; five suspects had been arrested by the time of most reports (g1 reported six). How the police established that the videos were AI-made is not disclosed, and no response from the people depicted is reported.
Core concern Medium reported severity Investigation Opened
AI involvement reported · Causal attribution supported · 4 sources, 1 underlying account · Added 29/10/2026
14 Oct 2026BrazilUnidentified image tool
A 12-year-old girl in Vitória da Conquista, in the south-west of Bahia, Brazil, was threatened from 14 October 2026 by a 15-year-old who said he had intimate images of her and demanded money not to post them on social media. Frightened, she secretly took R$8,300 from money her father kept and handed it over; the suspect then demanded a further R$10,000. According to the Bahia Civil Police, its investigation found that the image used in the threats had been produced with artificial intelligence to simulate intimate content of the girl. On 23 October police identified the 15-year-old and three other adolescents aged 14 to 16 as suspects, recovered R$6,300 and an electric bicycle bought with part of the money, and returned the money to her father. The police opened a juvenile offence procedure and sent it to the Childhood and Youth Court. How police established that the image was AI-made is not disclosed.
Core concern High reported severity Involving minors Investigation Opened
AI involvement reported · Causal attribution supported · 3 sources, 1 underlying account · Added 28/10/2026
Event date unknownBrazilUnidentified video tool
A woman in Porto Alegre, Brazil, saw an online video in which the model Gisele Bündchen appeared to promote a free skincare kit, paid the R$44.57 shipping fee and received nothing. Her police report, registered on 4 August 2024, led the Rio Grande do Sul Civil Police to Operation Modo Selva. On 1 October 2025 police executed 26 court orders in five states against a group they say used deepfake videos of celebrities, including Gisele Bündchen and several TV presenters, in fake product promotions; four people had been arrested by the time of the reports. The investigating delegate said the criminals had created a deepfake of the model's image and voice. Police say the scheme moved at least R$20 million, and assets worth up to R$210 million were frozen. The model thanked police for finding criminals who use artificial intelligence for online scams. No charge or trial outcome has been reported since.
Core concern Medium reported severity Investigation Opened
AI involvement reported · Causal attribution supported · 3 sources, 2 underlying accounts · Added 27/10/2026
30 Apr 2024BraziliFood facial recognition check
A delivery worker in Brazil's Federal District who had worked for the iFood app for about three years says he was banned from the platform in April 2024 shortly after completing the app's daily facial recognition check. iFood support told him another person had tried to access his account; when he asked to see that person's photos, they were his own. G1 reports that the only difference from his registration photo was his hair, which he was growing out. In a judgment reported in June 2025, a Brasília labour judge, applying a default because iFood had not filed a defence in time, accepted as true that the contract was suspended through iFood's fault, that he suffered financial and psychological losses, and that the facial recognition tool had a racist failure, and ordered iFood to pay R$60,000 in moral damages. iFood denies that its facial recognition procedure analyses racial characteristics and has appealed. The account was restored during the case. No appeal ruling has been reported.
Contextual tracker case Medium reported severity Lawsuit Ongoing
AI involvement reported · Causal attribution supported · 3 sources · Added 27/10/2026
Event date unknownBrazilMicrosoft text-to-speech (reported)
A professional voice actor sued a São Paulo shopping centre, saying it used the actor's voice without authorisation in a marketing campaign shown on YouTube, and claimed lost earnings and moral damages. The centre answered that the voice was not the actor's but a synthetic voice produced with Microsoft's text-to-speech service, available to the public. According to the legal news site ConJur, a judge of the 18th Civil Court accepted that the voice was produced synthetically and dismissed the claim; on appeal the actor argued that a notarised record attesting to the similarity of the voices had never been assessed. The 6th Private Law Chamber of the São Paulo Court of Justice annulled that judgment for curtailment of the defence, holding that the use of AI does not by itself rule out misuse of third parties' rights, and sent the case back for evidence on how the campaign voice was generated and how similar it is to the actor's. The court docket shows the case back at first instance at the court-expert stage in 2025; no ruling on the merits is reported. Whether the AI voice reproduces the actor's voice is disputed.
Core concern Low reported severity Lawsuit Ongoing
AI involvement reported · Causal attribution disputed · 2 sources · Added 26/10/2026
13 Apr 2024BrazilUnidentified facial recognition system
During the half-time interval of the Sergipe state football championship final at the Batistão stadium in Aracaju on 13 April 2024, military police took a personal trainer from the stands to a police room after the stadium's facial recognition system flagged him as a man with an open arrest warrant; he was searched and questioned and released once police confirmed he was not the person sought (G1, his lawyer and the military police). Sergipe's governor publicly regretted 'the failure of the facial recognition tool' and suspended its use until a new protocol was adopted. In June 2024 the man sued the state for 550,000 reais in moral damages; the state argued that the Aracaju municipality, not the state, had contracted the system. In December 2025 the judge rejected that preliminary objection, according to Mangue Jornalismo, which read the court file. No final judgment is reported.
Contextual tracker case Medium reported severity Lawsuit Ongoing
AI involvement reported · Causal attribution supported · 3 sources, 2 underlying accounts · Added 24/10/2026
18 Oct 2026BrazilUnidentified AI tool
The Federal Police arrested a man in the act during the Brazilian Bar Association (OAB) Exame de Ordem in São Luís, Maranhão, on Sunday 18 October 2026, according to the police account reported by Metrópoles and Migalhas. Police say officers sent to the exam venue after a criminal complaint about possible fraud found him using a mobile phone integrated with an artificial-intelligence tool to cheat. He was booked in the act for fraud in an exam of public interest and released after paying bail. Police said the investigation continues into the extent of the attempt and whether others took part. The reports do not name the AI tool, say whether it produced answers, or report an exam disqualification or charging decision.
AI relation unknown Low reported severity Investigation Opened
AI involvement reported · Causal attribution supported · 2 sources, 1 underlying account · Added 24/10/2026
19 Mar 2026Event location unknownChatGPT
In a judgment of 30 July 2026, the 2nd Labour Court of Brasília (Regional Labour Court of the 10th Region) upheld the dismissal for cause, on 19 March 2026, of a manager hired in June 2024. The employer said he had used artificial intelligence to falsify photos of orders on the iFood delivery app. A witness told the court she saw him use ChatGPT to alter a photo of an incomplete order, in which two of four soft drinks had been sent, so that it appeared complete, and use it to contest the customer's complaint to iFood support. The judge found this an act of dishonesty and misconduct that broke the trust required of a manager, rejected his claim that the dismissal was fabricated in retaliation for a claim he had filed the day before, dismissed all his claims, denied severance items and ordered him to pay 10% counsel fees, suspended because he was granted free legal aid. The legal news site Migalhas reported the judgment on 3 August 2026. No appeal is reported.
Core concern Medium reported severity Lawsuit Dismissed
AI involvement supported · Causal attribution established · 2 sources, 1 underlying account · Added 23/10/2026
27 Oct 2023BrazilUnidentified image tool
In late October 2023, fake nude images of girls at a private school in Rio de Janeiro circulated in messaging groups and on social media. Families said pupils in years 7 to 9 had used an artificial intelligence tool to put the faces of pupils aged 14 to 16 onto photos of naked bodies. The school sent parents a notice about pupils using AI to make intimate photo montages and said disciplinary measures would follow. The Rio de Janeiro Civil Police child-protection unit (DPCA) opened an inquiry; its head said the pupils were suspected of making fake nudes with AI and that more than 20 victims had been identified, including girls from other schools. A mother said the girls were having anxiety attacks and crying. The inquiry was placed under seal because minors were involved; its outcome is not known.
Core concern High reported severity Involving minors Investigation Opened
AI involvement reported · Causal attribution alleged · 4 sources · Added 22/10/2026
Feb 2026Event location unknownUnidentified image tool
In February 2026 federal deputy Rogério Correia posted on X a realistic image produced with artificial intelligence that, according to the Federal District court, inserted former president Jair Bolsonaro into a nonexistent scene and linked him to the banker Daniel Vorcaro, Banco Master and an alleged illicit scheme. Bolsonaro sued; a first-instance court ordered the deputy in May 2026 to pay 20,000 reais in moral damages and publish a retraction. On 8 October 2026 the First Civil Panel of the Federal District and Territories Court of Justice (TJDFT) unanimously dismissed the deputy's appeal, holding that parliamentary immunity does not cover a realistic AI image of a nonexistent event presented without a clear warning, and that the association harmed Bolsonaro's honour and image. The judgment was made public on 20 October 2026.
Core concern Low reported severity Lawsuit Ongoing
AI involvement reported · Causal attribution supported · 3 sources, 2 underlying accounts · Added 22/10/2026
20 Oct 2026BrazilUnidentified document-analysis tool
On 20 October 2026 the First Panel of Brazil's Superior Court of Justice (STJ) ordered the lawyers acting in a special appeal (AREsp 3.095.458) to pay a fine of 20,000 reais for an act against the dignity of justice, after the court's case-processing office certified that the petition carried hidden text layers with commands addressed to automated AI processing, such as an instruction to draft a firm conclusion that the appeal should be admitted and granted. The panel also ordered a technical report on the concealment techniques and the communication of the case to the Brazilian bar (OAB) and the Federal Public Prosecutor's Office. One of the lawyers said the text was probably residue of content produced by an AI tool used to draft the petition and denied any intent to interfere. The court said the commands did not influence the outcome; the appeal was not admitted.
AI relation unknown Low reported severity Regulatory Action
AI involvement reported · Causal attribution established · 2 sources · Added 22/10/2026
2024BrazilUnidentified document-generation tool
The Maranhão Civil Police said in October 2026 that a woman held in pre-trial detention had sold travel packages promising a year of flights for a fixed payment of about 8,000 to 10,000 reais, and that she used artificial intelligence to create fake airline tickets. No genuine tickets were issued. The investigation first identified 11 victims, some of whom, including older people, children and pregnant women, went to airports and could not board; the police say they suffered financial losses and emotional strain. She blamed overbooking or airline system failures. The police do not say which AI tool was used or how they established its use.
Core concern Medium reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 1 source · Added 21/10/2026
Event date unknownBrazilUnidentified image tool
The Polícia Civil de Goiás arrested a man in Rio Verde on Friday 16 October 2026 after his ex-partner reported receiving, through a messaging app, a view-once photo in which he appeared to hold a pistol inside a vehicle. According to the police, as reported by GYN Notícias and Metrópoles, no weapon was found in searches of his home and car, and he admitted sending the image and said he had used artificial-intelligence tools to make it look as if he were armed, in order to intimidate her. He was booked in flagrante for domestic violence against a woman under the Maria da Penha law and taken into custody.
Core concern Medium reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 2 sources, 1 underlying account · Added 20/10/2026
2025Event location unknownUnidentified image tool
A civil court in Goiânia, Brazil (32ª Vara Cível) ordered Telegram in a judgment signed on 6 October 2026 to pay R$10,000 in moral damages to a woman whose fake intimate images, created with artificial intelligence, were shared on the platform. According to the judgment as reported by Portal 6 (citing the legal news site Rota Jurídica) and O Popular, Telegram users used AI tools to alter photos that she and her sisters had posted on social media into nude and sexual images, and shared them without consent in a group of more than 120 participants with offensive sexual comments. She reported the group to Telegram through its support channels, including a notification on 29 July 2025, and received no reply; the group had 98 participants then and at least 123 a month later. The court held Telegram liable because it did not remove the posts after notification, ordered removal of the material, measures to block identical or similar copies, and disclosure of data identifying the group's creators and users. Telegram did not contest the case and did not answer O Popular.
Core concern Medium reported severity Lawsuit Ongoing
AI involvement reported · Causal attribution supported · 2 sources, 1 underlying account · Added 19/10/2026
May 2026BrazilGalileu
In May 2026 a judge of the 3rd Labour Court of Parauapebas, in the Brazilian state of Pará, fined two lawyers about R$84,000 after text in white font on a white background was found in a document they filed for a worker in a labour claim. According to the sentence as reported by G1, the hidden text was detected while the judgment was being drafted with Galileu, a generative AI tool the labour courts use to help judges and staff draft sentences, and its evident intention was to make the AI produce a superficial defence or a compromised draft judgment. The judge called the technique prompt injection. The lawyers said they disagreed with the decision and that there was never any command to manipulate the judge's decision, describing the text as an attempt to protect their client from the AI; one of them said she did not work on labour cases. In October 2026 the regional labour court announced that a Connecticut Superior Court judge had cited the decision when sanctioning a litigant for misuse of AI.
AI relation unknown Medium reported severity Regulatory Action
AI involvement supported · Causal attribution disputed · 3 sources, 2 underlying accounts · Added 16/10/2026
14 Sept 2026BrazilUnidentified document-analysis tool
A São Paulo business and arbitration court found that every page of a defendant's written defence carried a hidden instruction, placed above his lawyer's letterhead, asking any AI that analysed the petition to give a favourable opinion and praise the lawyer's probity and care. In a sentence dated 14 September 2026 the judge treated this as prompt injection and bad-faith litigation: although the defendant won on the merits, he was ordered to pay the plaintiff a fine of 9% of the updated case value, and the sentence was sent to the São Paulo bar to examine the lawyer's conduct. No source says any AI system read the instruction.
AI relation unknown Low reported severity Regulatory Action
AI involvement reported · Causal attribution established · 2 sources, 1 underlying account · Added 16/10/2026