Sep 22, 2026Unverified
Law Firm Shapiro Arato Bach Reportedly Filed Fictitious Case Citation and Misattributed Quotations Using Harvey's Legal AI Platform in New York Federal Court
AI loose in the worldMisinformationDERIVED
Approved by person, Oct 13, 2026. How entries are approved
Law firm Shapiro Arato Bach reportedly acknowledged that unchecked use of Harvey, a legal AI platform, produced a fictitious case citation and misattributed quotations in a brief filed in federal court in New York. The court required an explanation and disclosure of the AI tool. The judge declined sanctions, and the firm apologized and said it was adding safeguards.
What this means for youAt work, an AI tool's output can contain invented facts that look authoritative, so anyone filing or publishing it needs to check every citation and quote against the original source. In government and the courts, this shows why disclosure rules and human verification of AI-drafted filings matter.
Sources
- AI Incident Databasehttps://incidentdatabase.ai/cite/1728
Data from the AI Incident Database (incidentdatabase.ai), licensed CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). McGregor, S. (2021) Preventing Repeated Real World AI Failures by Cataloging Incidents: The AI Incident Database. IAAI-21.
Source data license: CC BY-SA 4.0 (database). Report contents keep their own rights; reports.text, submissions, images and videos are excluded from the data license.
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