2026United StatesChatGPT
In a 2026 Texas trial over 3M's role in the January 2020 Watson Grinding explosion in Houston, which killed three people, an engineering expert retained for 3M used ChatGPT to prepare his expert report, according to discovery records and transcripts reviewed by 404 Media and CBS News. One prompt asked ChatGPT to show how 3M was 0% at fault for the explosion. The plaintiffs' lawyers, who found a citation overlay document and then hundreds of pages of prompts, said ChatGPT produced more than 80% of the report. Under questioning, the expert acknowledged using AI to help draft the report but defended his research. CBS News reports that after the deposition 3M's attorneys removed him from their witness list, and the plaintiffs subpoenaed him to testify about his prompts at trial. The expert's lawyer said he did not delegate his opinions to ChatGPT and called public characterisations a selective distortion of the record; 3M said he was an independent witness who used AI as a tool after reaching his own conclusions. The jury found 3M negligent and the court awarded the victims $61.5 million; 3M said it would appeal.
Core concern Low reported severity Internal Action
AI involvement supported · Causal attribution supported · 3 sources, 2 underlying accounts · Added 17/10/2026
31 Mar 2026 to 11 Sept 2026United StatesIrys (reported)
A Los Angeles County Superior Court judge ordered a senior associate at Musick, Peeler & Garrett, the outside firm defending State Farm in a homeowner's lawsuit over a fire-damaged home, to pay a $999.99 sanction after the associate's motions in limine cited cases, quotations and holdings that did not exist, Law360 reported on 14 September 2026. In a declaration reproduced by Reason's Volokh Conspiracy, the associate said she used an AI program called Irys to prepare the motions, did not check some of the citations, and wrongly believed the program was cite-checked through the firm's Westlaw subscription; she confirmed seven non-existent case citations across eight motions. The plaintiff's lawyers found the citations and raised them at a status conference on 7 August 2026. The firm acknowledged citations that appeared to be AI hallucinations, and its lead trial counsel apologised to the court and the plaintiff. According to Law360, the judge had considered up to $5,000, and the amount set is one cent below the level at which California law requires a court to notify the State Bar.
Core concern Low reported severity Regulatory Action
AI involvement supported · Causal attribution supported · 4 sources · Added 17/10/2026
5 Feb 2026 to 9 Oct 2026United StatesvLex, Paxton AI and NotebookLM (reported)
In a federal trademark suit in the U.S. District Court for the Southern District of New York, the court on 5 February 2026 struck a company defendant's motion papers and entered default judgment against it as a sanction on its lawyer, after his filings repeatedly cited nonexistent cases and misattributed quotations. The lawyer said he had found and cite-checked cases with AI tools (vLex and Paxton AI) and used NotebookLM to review a later submission; the court rejected his explanations and found he acted in bad faith. On 9 October 2026 the court described the citations as produced by generative AI and ordered the lawyer to pay $38,877.59 in fees and costs to the firm of a co-defendant's former lawyer, who had reported the false citations to the court.
Core + contextual relations Medium reported severity
AI involvement supported · Causal attribution established · 2 sources, 1 underlying account · Added 16/10/2026
24 Apr 2026United StatesUnidentified AI research tool
On 24 April 2026 the Supreme Court of Alabama dismissed an appeal by two siblings in a family dispute over living trusts because their lawyer, W. Perry Hall, had filed briefs in which most of the legal authorities were misquoted or did not exist. The court said they appeared to be AI hallucinations, and at a show-cause hearing in February 2026 Hall admitted that many authorities did not exist and that he had improperly used AI to obtain them. The court ordered Hall to pay the opposing party's fees and costs of $17,200 and double appeal costs, barred him from filing in the court without a co-signing attorney and referred him to the Alabama State Bar. It said the dismissal was imposed as a sanction because of the particularly egregious facts. One justice, concurring in part and dissenting in part, objected to dismissing the appeal as a sanction for the lawyer's conduct but would have affirmed the judgment against the clients on the merits.
Core + contextual relations Medium reported severity Regulatory Action
AI involvement supported · Causal attribution established · 1 source · Added 14/10/2026
3 Jun 2026United StatesUnidentified AI tool
On 3 June 2026 the US Court of Appeals for the Ninth Circuit fined immigration attorneys Mike Singh Sethi and William Rounds $2,500 each and suspended both from practice before the court for six months. Briefs filed in an asylum petition for review cited two cases that do not exist and attributed quotations to opinions that do not contain them. In a motion to correct, the attorneys called the errors typographical, and at oral argument Rounds twice said AI was not used. In their response to the court's order to show cause, they conceded that the errors were probably the product of unauthorised AI use by the firm's unlicensed brief writers and a failure to check citations. The court said the suspension was owed to their repeated failure of candour. The Board of Immigration Appeals then suspended Sethi from practice before the Board, the immigration courts and the Department of Homeland Security for six months, effective 13 June 2026, and designated that decision as a precedent on 1 October 2026.
Contextual tracker case Medium reported severity Regulatory Action
AI involvement supported · Causal attribution established · 2 sources · Added 14/10/2026
Sept 2026United StatesUnidentified image tool
The Stanford Review reported on 21 September 2026 that Stanford's Residential & Dining Enterprises (R&DE) had used AI to change the appearance of students in its advertising: a student was sent images comparing a banner with the original photograph, which he recalled a Stanford photographer taking, and found he had been removed and replaced by an AI-generated Black woman, while the two students beside him were made to appear visibly thinner. Stanford confirmed to The Stanford Daily on 23 September that R&DE used generative AI to modify the appearance of several students in the image; the Daily reported that the students' clothing was changed into Stanford merchandise, two students' faces were slimmed and one student's race, gender and appearance were entirely changed, and the university said the alteration and its non-disclosure violated its policy prohibiting AI in producing or altering images of Stanford people; the banner at the Governor's Corner housing centre was taken down and staff training promised. On 24 September NBC News reported the university's statement that the alteration was 'a serious error in judgment', that it had apologised to the students whose images were altered or erased, and that it had opened an investigation. The replaced student, who first found the edit funny, said that seeing his identity changed and being left out made him feel 'silenced and erased from a representation that was supposed to include me', that it was upsetting, and that he was exhausted by the national media attention. According to the student, the original photograph was taken at a 2024 Lunar New Year dinner in a campus dining hall and had been used unaltered in earlier promotional material.
Core concern Low reported severity Internal Action
AI involvement supported · Causal attribution established · 4 sources, 2 underlying accounts · Added 25/09/2026
19 May 2026United StatesUnidentified voice-cloning tool (suspected)
A married couple in their sixties buying a US$460,000 condo in Hudsonville, near Grand Rapids, Michigan, received an email on 19 May 2026, days before closing, telling them to wire US$66,026.92 for the down payment and closing costs within 24 hours. The email listed a phone number differing from their loan officer's by two digits, and the husband then received a call confirming the instructions in a voice that sounded just like the loan officer. The couple borrowed from family and other sources and wired the money. The day before closing their real loan officer sent the actual statement; the closing was cancelled hours before signing and the money was gone. The husband now believes the call came from a spoofed number using AI-assisted voice cloning; Tyler Adams of CertifID, which is working with the couple and federal officials, said someone's email in the transaction was probably compromised and that the scammers likely cloned the loan officer's voice from social-media clips. The sender's address had two extra letters ('UnitedsMortgages' instead of 'UnitedMortgage'). Neither the lender nor the loan officer is accused of complicity. The couple later completed the purchase in early June from their mutual fund, reported the loss to the FBI's Internet Crime Complaint Center, and describe lasting apprehension and have discussed delaying retirement. CNN reported the case on 15 September 2026; the account the money went to has since closed.
Core concern Medium reported severity Investigation Opened
AI involvement suspected · Causal attribution alleged · 2 sources, 1 underlying account · Added 20/09/2026
Jun 2026 to Aug 2026United StatesUnidentified image tool
Florida police arrested a man in September 2026 and charged him with creating and promoting altered sexual depictions of a woman, sexual cyberharassment and stalking. Police say a forensic examination of his devices showed he used AI to make sexually explicit images of her, some of them from photographs taken from social media and other online sources. They say several more women may have been depicted. The charges had not been tried at review.
Core concern High reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 4 sources, 2 underlying accounts · Added 20/09/2026
2 Sept 2026United StatesMeta AI
On 1 September 2026 Kalie Robins, a Utah travel creator, posted a short Instagram video of herself singing in the car with one of her daughters; it was also shown on Facebook. The next day she noticed Meta AI had placed suggested questions under the post, starting with 'Who's the child passenger?'. Clicking the prompts, she said, produced her two daughters' names, birth information, photos and videos drawn from her own and relatives' past posts, including a newborn photo from her mother's account and a picture she believed she had deleted years earlier, and a further prompt, 'Where does Kalie Robins live?', assembled older and newer posts into her likely location. Her 2 September reaction video drew more than 310,000 likes. Meta told reporters the prompts 'missed the mark', 'should never have been generated' and had been fixed, while saying the feature only surfaces information the user can already access; it disputed that a long-deleted photo was used, saying the photo had been deleted shortly before the video and remained briefly visible through a bug. Robins said Meta never contacted her and that the episode left her feeling she had 'failed' her children.
Contextual tracker case Low reported severity Involving minors Internal Action
AI involvement supported · Causal attribution supported · 4 sources · Added 18/09/2026
16 May 2026United StatesGemini (reported)
A Boca Raton, Florida father told WPBF, WPTV and ABC News that after his teenage daughters took a Lyft home from the beach (on Saturday 16 May 2026, according to ABC News), he was charged a $75 damage fee because the driver reported that the riders had left a mess. Lyft customer service told him the driver had sent pictures. One daughter pointed out a Gemini logo in the corner of the photo, which the family took as showing it was AI-generated. The father says Lyft then agreed, apologised and blocked the driver. Lyft's statements say it reviewed the rider's concerns, offered reimbursement and, per its later statements, permanently removed the driver; they do not say the photo was AI-generated.
Contextual tracker case Low reported severity Involving minors Internal Action
AI involvement reported · Causal attribution alleged · 3 sources · Added 17/09/2026