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
Aug 2026Event location unknownGoogle AI Mode
In late August 2026 a colleague told a German physician, until that summer a chief physician at a hospital, that searching his name with the word for suspension in Google's AI Mode produced what read like a factual report: that he had been suspended and dismissed and had received a suspended sentence for sexual coercion. According to legal news site beck-aktuell, none of it concerned him; the AI had apparently attached facts about another former senior employee of the same hospital to his name, and the newspaper articles it linked as sources did not name him. Google said it had reviewed his complaint and would take no action, and a lawyer's warning letter also failed. On 24 September 2026 the Aachen Regional Court issued a preliminary injunction (8 O 268/26) barring Google Ireland Limited from spreading the claims through AI Mode, finding that they violated his personality rights and that Google is responsible for its AI search answers.
Contextual tracker case Medium reported severity Lawsuit Ongoing
AI involvement supported · Causal attribution established · 2 sources, 1 underlying account · Added 15/10/2026
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
19 Jun 2026 to 13 Aug 2026BrazilChatGPT and OpenAI moderation
BBC reporting describes a Brazilian man detained for 54 days after OpenAI reported messages to the FBI and Brazilian authorities. Police described a credible threat; he denied intending harm. A court released him without charges under protective conditions. The report did not include ChatGPT’s replies.
Core + contextual relations High reported severity Investigation Opened
AI involvement supported · Causal attribution supported · 4 sources, 2 underlying accounts · Added 23/09/2026
26 Aug 2026 to 28 Aug 2026SpainUnidentified Google AI tool (reported)
On 26 August 2026, WhatsApp groups in Ceuta circulated videos and images claiming that Argentine political scientist and activist Flavia Broffoni — who was in Patagonia and had not been to Spain since 2014 — was a woman filmed in Ceuta allegedly giving pepper spray to Moroccan migrants. A screenshot from one group shows that a user cropped the woman's face from the video and asked a Google AI tool who she was, with the word 'activista' as context; the answer identified her as Flavia Broffoni with details of her public profile. Broffoni received death and rape threats. La Nación's own test with the same video produced a different false identification — a student from Quilmes, with her personal data. Google Argentina said it could not confirm the screenshot came from its systems without the original link and had received no formal report. Broffoni is weighing legal action with her lawyer.
Contextual tracker case High reported severity Media Coverage
AI involvement supported · Causal attribution supported · 1 source · Added 15/09/2026