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High reported severity Criminal Charges

Seoul: doctoral student sentenced to 18 months for 1,141 AI-manipulated sexual images of seven laboratory colleagues

On 10 September 2026 the Seoul Northern District Court sentenced a 30-year-old Chinese national doctoral student to 18 months in prison for habitually producing manipulated sexual images of seven women who worked in his university research laboratory. Investigators found 1,141 files made over about six months from November 2025, and search records for ways to bypass the safeguards of the generative AI Grok; the court found no evidence of distribution. A lawyer for five of the victims said they continued to suffer fear, trauma and distress. Prosecutors had sought three years and public disclosure of his identity, which the court declined.

AI system
Unidentified image tool
Occurred
Nov 2025
Reported
10 September 2026
Event location
South Korea
What the AI did
Depicted or impersonated the person
Reported harm
Exploitation or AbusePsychological Distress
Whose AI use
Someone else’s AI use
Setting
Education · Privacy · Justice
Evidence
AI involvement supported · Causal attribution supported · 3 sources
5 claims: 4 corroborated, 1 reported. 6 open questions
People reported harmed
7 people

AI system as recorded: Generative AI image tools (unspecified; investigators found searches for bypassing Grok's safeguards)

What Happened

A 30-year-old Chinese national studying for a doctorate at a Seoul university was convicted of habitually editing and compositing the faces of seven women from his research laboratory into sexual images and videos over about six months beginning in November 2025. The 1,141 files were kept on his laptop and came to light when other research material was being taken out of the laboratory. Investigators also found search records for ways to bypass the safeguards of the generative AI Grok; the reporting does not say which tool produced the images. He admitted the charges at the first hearing and deposited 7 million won per victim with the court, which the victims refused. On 10 September 2026 the Seoul Northern District Court sentenced him to 18 months in prison with a treatment programme and a five-year employment restriction, citing the seriousness of targeting colleagues and the victims' refusal to forgive, while noting his admission, the absence of evidence of distribution and no prior record; it declined the prosecution's request for public disclosure of his identity.

Reported harm

Seven women had their faces composited into sexual images and videos without consent; a lawyer for five of them told the court they continued to suffer fear, trauma and emotional distress.

Outcome

Ongoing

First-instance judgment of the Seoul Northern District Court (Criminal Division 5, single judge), 10 September 2026: 18 months' imprisonment, 40-hour sexual-violence treatment programme, five-year employment restriction, seizure of evidence, registration as a sex offender on finality; disclosure order declined. Prosecutors had sought three years. Appeal status unknown.

What remains unknown

  • Which tool or service generated the images is not stated; the Grok safeguard-bypass searches are the only named system.
  • Whether either side appealed the first-instance sentence is not known.
  • The victims' ages are not reported; the university is not named here.
  • The written judgment was not inspected.
  • Exact event start day and end date are not reported; the sources describe about six months from November 2025.
  • Sentencing date differs across inspected reports: Newsis and News1 say 10 September 2026; the Korea Herald copy says 9 September. The written judgment was not inspected to resolve this.

What the evidence supports

AI involvement: supported. The court convicted the defendant of habitually editing and compositing the victims' faces into sexual images; Dong-A Ilbo and The Korea Herald report that investigators found search records for ways to bypass the safeguards of the generative AI Grok. The tool that produced the images is not named in the inspected reporting.

5 claims: 4 corroborated, 1 reported. What the statuses mean

Corroborated On 10 September 2026 the Seoul Northern District Court sentenced a 30-year-old Chinese national doctoral student to 18 months in prison under the Sexual Violence Punishment Act for habitually producing manipulated sexual images of seven women from his university research laboratory, and ordered a 40-hour treatment programme and a five-year employment restriction at institutions for children, adolescents and people with disabilities.

Causal attribution. Court judgment as reported by Newsis, News1 via Dong-A and The Korea Herald via The Straits Times; the written judgment was not inspected. The Korean accounts give 10 September while the Korea Herald copy gives 9 September. The record follows the two Korean accounts and retains the unresolved date discrepancy.

  • newsis.com(opens in new tab) supports · Korean
    Paragraphs 1-2: 서울북부지법 형사5단독 권소영 판사, 10일, 징역 1년6개월; 40시간 성폭력 치료 프로그램 이수; 취업제한 5년; 중국 국적 A(30)씨.
  • donga.com(opens in new tab) supports · Korean
    Paragraphs 1-3: 징역 1년 6개월; 40시간 치료프로그램; 5년간 취업제한; 중국 국적 대학원생 (30).
  • straitstimes.com(opens in new tab) contradicts · English
    Opening paragraphs report the same 18-month sentence and associated orders but date sentencing to 9 September. That date contradicts the 10 September date reported by Newsis and News1; this source does not corroborate the exact date.
Corroborated Investigators found 1,141 manipulated images and videos on his computer, produced over about six months from November 2025 using the victims' facial photographs; the court found no evidence the material had been distributed.

Causal attribution. Findings of the court as reported.

  • newsis.com(opens in new tab) supports · Korean
    Paragraphs 5-8: 지난해 11월부터 약 6개월간; 1141개; 개인 노트북에 보관; 유포됐다고 확실히 볼 만한 정황은 없다.
  • donga.com(opens in new tab) context · Korean
    Paragraphs 5-6 and 8: 1141건; 유포됐다고 볼 만한 사정은 없는 점.
  • straitstimes.com(opens in new tab) supports · English
    Paragraph 4: 1,141 files; paragraph 9: no evidence the content had been distributed.
Corroborated Investigators also found records of searches for ways to bypass the safeguards of the generative AI Grok.

Causal attribution. Reported from the investigation; the reporting does not state which tool generated the images.

  • donga.com(opens in new tab) supports · Korean
    Paragraph 8: 생성형 인공지능(AI) '그록'의 안전장치를 우회하는 방법을 검색한 기록도 확인됐다.
  • straitstimes.com(opens in new tab) supports · English
    Paragraph 5: 'Investigators also found that he had searched for ways to bypass safeguards built into Grok, a generative AI chatbot.'
Reported A lawyer representing five of the victims told the court they continued to suffer fear, trauma and emotional distress.

Causal attribution. Victims' representative's statement as reported by The Korea Herald.

  • straitstimes.com(opens in new tab) supports · English
    Paragraph 12: 'a lawyer representing five of the victims asked the court to impose a harsh sentence, saying they continued to suffer from fear, trauma and emotional distress'.
Corroborated The defendant deposited 7 million won per victim with the court; the victims refused to accept it. Prosecutors had sought three years and public disclosure of his identity, which the court declined.

Causal attribution. Procedural facts as reported.

Sources

3 sources inspected. Sources that repeat one account do not corroborate each other.

How the sources were read, and where the events happened

Model read the Korean original retained on 2026-09-15; no independent bilingual human review. Applies to s1.

Model read the Korean original retained on 2026-09-15; no independent bilingual human review. This Dong-A page is a News1 wire report, explicitly credited at the article’s beginning and end. Applies to s2.

The Korea Herald report carried by The Straits Times (Asia News Network); read in English on 2026-09-15. Applies to s3.

Event countries: South Korea. Affected-person countries: South Korea. Court countries: South Korea.

Event and affected persons: the women and defendant worked or studied in the same university research laboratory in Seoul (Newsis; News1 via Dong-A). Court: Seoul Northern District Court. Newsis and News1 date the sentence to 10 September 2026; the Korea Herald copy gives 9 September.

Reviewed for publication 2026-09-15: Published after source, duplicate and sensitivity review under the 2026-09-15 charter: a first-instance criminal judgment reported by two Korean outlets and The Korea Herald. Neither the defendant nor the victims are named; no image content is described beyond the court's characterisation.

People described

Seven women who studied in the same university research laboratory in Seoul

People reported harmed in this case

7 people

0 AI participants · 7 other people harmed

The court identified seven victims, members of the same research laboratory (Newsis; Dong-A; Korea Herald). The defendant is not counted.

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

Tags

#deepfakes#south-korea#non-consensual-imagery#university#criminal-charges#grok

Cite this case

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

APA

NOPE. (2026). Seoul: doctoral student sentenced to 18 months for 1,141 AI-manipulated sexual images of seven laboratory colleagues. AI incidents. https://nope.net/incidents/2026-seoul-lab-colleagues-deepfake-sentence

BibTeX

@misc{2026_seoul_lab_colleagues_deepfake_sentence,
  title = {Seoul: doctoral student sentenced to 18 months for 1,141 AI-manipulated sexual images of seven laboratory colleagues},
  author = {NOPE},
  year = {2026},
  howpublished = {AI incidents},
  url = {https://nope.net/incidents/2026-seoul-lab-colleagues-deepfake-sentence}
}

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