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AI incidents in professional & legal services
Headlights has documented 15 AI incidents in professional & legal services, 6% of the library, from 2023 to 2026. The behaviours most often in the record are automation bias (9), rules-behaviour gap (2). Most are from Australia (8), the United States (4), Brazil (2).
15 incidents, newest first
HD-INC-231A Court Struck Part of Anthropic's Expert Evidence After Claude Changed a CitationUnited States · 2025HD-INC-220A Brazilian Court Sanctioned a Hidden Instruction Aimed at Its AI to Grant Every ClaimBrazil · 2026HD-INC-214A Brazilian Labour Court Fined Two Lawyers Over a Hidden Instruction to AI in a FilingBrazil · 2026HD-INC-177A KPMG partner used AI to pass the firm's own mandatory AI test, and 28 staff instances were identifiedAustralia · 2026HD-INC-176A self-represented worker relied on AI generated material that argued the wrong date, and was ordered to pay costsAustralia · 2026HD-INC-057ChatGPT reportedly told users an Australian mayor had gone to prison for bribery, when he was the whistleblower who exposed itAustralia · 2023HD-INC-039A finance worker at Arup paid out about US$25 million after a video call with colleagues who were all deepfakesHong Kong · 2024HD-INC-036A Misinformation Expert's Court Declaration on Deepfakes Cited Studies That Did Not ExistUnited States · 2024HD-INC-025An Australian Lawyer Relied on ChatGPT and Filed 17 Cases That Did Not ExistAustralia · 2025HD-INC-013Melbourne Law Firm Ordered to Pay Costs Over Fake Citations in a Native Title ClaimAustralia · 2025HD-INC-012A Senior Barrister Filed AI-Invented Cases and Quotes in a Victorian Murder TrialAustralia · 2025HD-INC-011The First Australian Lawyer Disciplined for AI Misuse Handed a Judge Fake CasesAustralia · 2024HD-INC-010Deloitte's $440K AUD report for the Australian government cited a federal court quote that did not existAustralia · 2025HD-INC-003Google Bard Invented Three Court Cases, and a Lawyer Filed Them Without CheckingUnited States · 2023HD-INC-002Mata v. Avianca: A Lawyer Cited Six Fake Cases and Asked ChatGPT to Confirm ThemUnited States · 2023
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Cite this page: Harris, E. (2026). AI incidents in professional & legal services. Headlights. https://useheadlights.com/topics/industry/legal/