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NOPE
Medium reported severity Involving minors Investigation Opened

Jaú, São Paulo: eight 15-year-old ninth-grade boys at a private school are reported to have made fake nude images of a female classmate with artificial intelligence and shared them in a WhatsApp group; the school suspended them and the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation

In early September 2026 a private school in Jaú, in the interior of São Paulo state, identified the circulation of fake intimate images of a female classmate made with artificial intelligence and contacted the families. According to the police report described by the press, eight ninth-grade boys, all aged 15, kept a WhatsApp group in which they used digital programs to manipulate images of the student so that she appeared unclothed. The school suspended the eight and informed the girl's parents. The father of one of the boys checked his son's phone, found the files and took the boy and the phone to the police to register a report; the girl's parents also registered a police report. The São Paulo Public Security Secretariat said the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation that occurred on the morning of Thursday 3 September. The school said the content originated on a private platform outside the school environment and that it had adopted protective and welcoming measures for the student and opened an internal inquiry. The AI tool used is not named. The students are minors and are not named in any report.

AI system
Unidentified image tool
Occurred
3 Sept 2026
Reported
8 September 2026
Event location
Brazil
What the AI did
Depicted or impersonated the person
Reported harm
Exploitation or Abuse
Whose AI use
Someone else’s AI use
Setting
Education · Privacy · Justice · Everyday life
Evidence
AI involvement reported · Causal attribution supported · 4 sources, 3 underlying accounts
4 claims: 4 reported. 5 open questions
People reported harmed
1 person

AI system as recorded: Artificial-intelligence image manipulation program(s), not named in any report

What Happened

Metrópoles reported on 8 September 2026 that a father registered a police report against his own 15-year-old son after finding that the boy had taken part in creating and sharing fake intimate images of a school classmate in Jaú; the montages were made with artificial intelligence and passed around a WhatsApp group with seven other students. The private school identified the circulation of the images and contacted the families; the eight students, all 15-year-old boys in the ninth grade, were suspended, and the parents of the girl who appears in the images were informed. After the school's alert the father checked his son's phone, found the files and took the boy and the phone to a police station. Jornal do Povo (Marília), citing the police report and an interview the father gave to TV TEM, says the boys kept a WhatsApp group in which they used digital programs to manipulate images of the student and simulate photos of her unclothed, and that the girl's parents also registered a police report. JCNET (Bauru) reports that the school called the father to a meeting on the 3rd and that the SSP said the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation that occurred on the morning of Thursday the 3rd, with the case registered at the CPJ of Jaú. CNN Brasil carries the same SSP statement and the school's note that the content originated on a private digital platform outside the school and that it adopted protection and welcoming measures for the student and opened an internal inquiry. Reports differ on the date of the father's police report (8 September per Metrópoles; CNN Brasil says he made the case public on Saturday 5 September) and on the investigating unit (DDM per Metrópoles and Jornal do Povo; CPJ per the SSP statement quoted by JCNET and CNN Brasil).

Reported harm

A female student was depicted in fake nude images that classmates are reported to have made with artificial intelligence and shared in a WhatsApp group of eight boys; the police are investigating dissemination of child pornography and defamation. The account comes from the police report and a father's statements as relayed by the press and from the SSP statement; no report describes the girl's own response.

Outcome

Ongoing

Police: the São Paulo Public Security Secretariat (SSP) said the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation; the case was registered at the Central de Polícia Judiciária (CPJ) of Jaú, which is carrying out inquiries (JCNET, 10 September 2026; CNN Brasil, 9 September). Metrópoles and Jornal do Povo (Marília) report that the Delegacia de Defesa da Mulher (DDM) of Jaú is investigating and will establish each adolescent's role. The girl's parents also registered a police report. School: the eight boys were suspended (for three days, per JCNET); the school said it adopted protection and welcoming measures for the student and opened an internal inquiry. No outcome was reported by 29 September 2026.

What remains unknown

  • The AI program used and how the images were made.
  • When the images were created; the SSP dates the dissemination to the morning of 3 September 2026.
  • The individual role of each of the eight boys.
  • How the depicted student was affected; no report gives her or her family's account beyond their police report.
  • The outcome of the police inquiry and of the school's internal inquiry.

What the evidence supports

AI involvement: reported. Metrópoles says the montages were made with artificial intelligence; Jornal do Povo, citing the police report, says the boys used digital programs to manipulate images of the student; JCNET and CNN Brasil describe the images as created with artificial intelligence. No tool is named and no forensic finding is public. The AI artifacts depicted the girl; no AI system interacted with her.

4 claims: 4 reported. What the statuses mean

Reported A private school in Jaú identified the circulation of fake intimate images of a female classmate made with artificial intelligence; according to the police report, eight ninth-grade boys aged 15 kept a WhatsApp group in which they used digital programs to manipulate images of the student so that she appeared unclothed.

Causal attribution. The account originates in the school's alert, the police report and a father's statements; the AI tool and the individual roles of the eight boys are not established.

  • metropoles.com(opens in new tab) supports · Portuguese
    'As montagens foram feita com o uso de Inteligência Artificial (IA) e repassadas em um grupo de WhatsApp com outros sete alunos.'; 'O caso veio à tona depois que a escola particular onde os adolescentes estudam identificou a circulação das imagens e entrou em contato com as famílias.'
  • jornaldopovomarilia.net(opens in new tab) supports · Portuguese
    'Segundo o registro policial, o adolescente e outros sete colegas do 9º ano, todos meninos de 15 anos, mantinham um grupo no WhatsApp no qual usavam programas digitais para manipular imagens da estudante e simular fotos dela sem roupa.'
  • sampi.net.br(opens in new tab) supports · Portuguese
    'foram compartilhadas fotos íntimas falsas de uma colega de classe, criadas por meio de inteligência artificial (IA)'
Reported The school suspended the eight boys and informed the girl's parents; the father of one boy found the files on his son's phone and took the boy and the phone to the police to register a report, and the girl's parents also registered a police report.

Causal attribution. School and family actions as described by the father and the press.

  • metropoles.com(opens in new tab) supports · Portuguese
    'Os oito estudantes, todos meninos de 15 anos e alunos do 9º ano, foram suspensos pela instituição. Os pais da adolescente que aparece nas imagens também foram informados.'; 'Ele encontrou os arquivos relacionados às montagens no aparelho, foi quando o levou junto ao celular até uma delegacia da cidade para registrar a ocorrência.'
  • jornaldopovomarilia.net(opens in new tab) supports · Portuguese
    'Os pais da vítima também registraram boletim de ocorrência.'
  • sampi.net.br(opens in new tab) supports · Portuguese
    'A reportagem apurou que os pais da vítima também registraram boletim de ocorrência na CPJ de Jaú.'
Reported The São Paulo Public Security Secretariat said the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation that occurred on the morning of Thursday 3 September 2026, registered at the Central de Polícia Judiciária of Jaú.

Causal attribution. An official statement relayed by two outlets; it confirms an investigation, not the facts under investigation.

  • sampi.net.br(opens in new tab) supports · Portuguese
    'a Polícia Civil informou que investiga um adolescente de 15 anos por divulgação de pornografia infantil e difamação ocorridas na manhã da última quinta-feira (3).'; 'O caso foi registrado na Central de Polícia Judiciária de Jaú, que mantém diligências em vista a esclarecer a totalidade dos fatos.'
  • cnnbrasil.com.br(opens in new tab) supports · Portuguese
    'Em nota, a SSP (Secretaria da Segurança Pública) afirmou que o adolescente é investigado por divulgação de pornografia infantil e difamação.'
Reported The school said the content originated on a private digital platform outside the school environment and its control, and that it adopted protection and welcoming measures for the student and opened an internal inquiry.

Causal attribution. The school's own statement.

  • cnnbrasil.com.br(opens in new tab) supports · Portuguese
    'afirmou que o conteúdo teve origem em uma plataforma digital privada, fora do ambiente escolar e do controle da instituição. A escola informou que adotou medidas de proteção e acolhimento à aluna e abriu uma apuração interna.'
  • sampi.net.br(opens in new tab) supports · Portuguese
    'ações de proteção e acolhimento à pessoa afetada, preservação e sigilo das informações pertinentes ao caso e instauração de apuração interna'

Sources

4 sources inspected, from 3 underlying accounts. Sources that repeat one account do not corroborate each other.

How the sources were read, and where the events happened

Metrópoles, 8 September 2026, read live by curl on 2026-09-29 (HTTP 200, JSON-LD articleBody also present). Portuguese; quotations translated by the reviewer. Account derives from the police report and the father's statements. Applies to s1.

Jornal do Povo (Marília), 9 September 2026, read live by curl on 2026-09-29 (HTTP 200). Portuguese; translated by the reviewer. Relays the police report and the father's interview with TV TEM; grouped with s1. Applies to s2.

CNN Brasil, 9 September 2026, read live by curl on 2026-09-29 (HTTP 200, JSON-LD articleBody). Portuguese; translated by the reviewer. Combines the father's social-media video with the SSP statement and the school's note. Applies to s3.

JCNET/Sampi (Bauru), 10 September 2026, read live by curl on 2026-09-29 (HTTP 200). Portuguese; translated by the reviewer. Own reporting ('A reportagem apurou') plus the SSP statement and the school's note. Applies to s4.

Event countries: Brazil. Affected-person countries: Brazil. Court countries: Unknown.

All four reports place the school and the police registration in Jaú, in the interior of São Paulo state, Brazil. No court proceeding is reported.

Reviewed for publication 2026-09-29: Published under the 2026-09-15 charter as an image-based abuse case affecting a minor who was depicted in AI-made fake nude images, documented by four Brazilian outlets and an official SSP statement confirming a police investigation. Not a death case. The students, the depicted girl, the father and the school are not named here.

People described

A female student at a private school in Jaú, São Paulo, depicted in AI-made fake nude images shared by classmates; a minor; not named

People reported harmed in this case

1 person

0 AI participants · 1 other person harmed

One girl: every report describes images of 'uma colega' (one classmate) and 'a adolescente que aparece nas imagens'. The eight boys and the father are not counted.

Counted once within this case. The same person may appear in other cases. This count does not establish AI causation.

Tags

#deepfake#ai-generated-imagery#ncii#school#whatsapp#brazil#sao-paulo#jau

Cite this case

Compiled per our published methodology: verification statuses, sourcing standards, and corrections process.

APA

NOPE. (2026). Jaú, São Paulo: eight 15-year-old ninth-grade boys at a private school are reported to have made fake nude images of a female classmate with artificial intelligence and shared them in a WhatsApp group; the school suspended them and the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation. AI incidents. https://nope.net/incidents/2026-jau-sp-school-ai-fake-nude-images-classmate

BibTeX

@misc{2026_jau_sp_school_ai_fake_nude_images_classmate,
  title = {Jaú, São Paulo: eight 15-year-old ninth-grade boys at a private school are reported to have made fake nude images of a female classmate with artificial intelligence and shared them in a WhatsApp group; the school suspended them and the Civil Police are investigating a 15-year-old for dissemination of child pornography and defamation},
  author = {NOPE},
  year = {2026},
  howpublished = {AI incidents},
  url = {https://nope.net/incidents/2026-jau-sp-school-ai-fake-nude-images-classmate}
}

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