Log in or register
Share on LinkedInShare on LinkedIn

ARTICLE · 25 FEBRUARY 2026

SDNY: Client's GenAI-Generated Legal Research Not Protected By Privilege

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Contributor
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

Mintz is a litigation powerhouse and business accelerator serving leaders in life sciences, private...

View firm profile
Explore more from Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

A new ruling from the Southern District of New York has implications for anyone using GenAI tools in connection with litigation, government investigations, or legal advice.

United StatesLitigation, Mediation & Arbitration
Michael Gardener
Michael Gardener
John Koss
John Koss
Jeffrey Sheroff
Jeffrey Sheroff
Author LinkedIn connections

A new ruling from the Southern District of New York has implications for anyone using GenAI tools in connection with litigation, government investigations, or legal advice. On February 17, 2026, in U.S. v. Heppner, Judge Jed Rakoff issued a written opinion holding that electronic documents a defendant created using the consumer version of the GenAI tool Claude are not shielded by attorney-client privilege or work product protection when seized pursuant to a search warrant at the defendant's premises. This alert breaks down the court's reasoning and provides practical steps to help preserve privilege when using GenAI tools.

What Happened

Defendant Bradley Heppner used the consumer version of Claude to conduct legal research in anticipation of litigation after receiving a grand jury subpoena. The defendant incorporated communications and information from his attorneys into his prompts, intended to share the GenAI outputs with counsel, and ultimately did so.

We operate a free-to-view policy, asking only that you register in order to read all of our content. Please login or register to view the rest of this article.

Register for freeORLog in

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

View source

Related Articles

Legal Intelligence Newsletters: sign up for the latest legal and regulatory news on your chosen topics

Read more about

Related Comparative Guides

See more popular content from

Article

Tenth Circuit Stays Nationwide Eligibility Injunction For Class Of 2022 In Wisne v. NCAA

On August 21, 2026, the Tenth Circuit granted the NCAA’s stay request in Wisne v. NCAA, temporarily restoring the NCAA’s age-based eligibility rules pending resolution of the appeal. Three weeks earlier, Judge Sweeney of the District of Colorado had issued a nationwide injunction that permitted athletes in the Class of 2022 to pursue a fifth year of eligibility.
United StatesLitigation, Mediation & Arbitration
Buchanan Ingersoll & Rooney
Buchanan Ingersoll & Rooney
Article

“LEGAL ANALYSIS SO POOR THAT IT HARDLY DESERVES THE LABEL”: Fifth Circuit COA Destroys Federal Judge For Using AI And I Cannot Believe Lawyers Are Still Using This Junk

A Fifth Circuit Court of Appeals ruling harshly criticizes a federal district judge for relying on AI-generated content in legal orders, revealing fabricated facts and poor legal analysis. The decision raises critical questions about the use of generative AI in legal practice and whether lawyers who adopt such technology are compromising their ethical obligations of competence, confidentiality, and integrity.
United StatesLitigation, Mediation & Arbitration
Troutman Amin LLP
Troutman Amin LLP
Article

Show Your Work: California Federal Court Denies Preliminary Approval Of Data Breach Class Action Settlement

A federal court in California denied preliminary approval of a $2.3 million data breach settlement affecting over 220,000 individuals, finding seven critical deficiencies in the proposed agreement. The decision highlights the rigorous scrutiny courts apply to class action settlements, particularly regarding claims-made distribution processes, inadequate documentation of settlement value, and unexplained disparate treatment among class members.
United StatesLitigation, Mediation & Arbitration
Duane Morris LLP
Duane Morris LLP
Article

California Federal Court Denies TikTok’s Motion To Dismiss Children’s Privacy Claims Based On Prior Class Action Settlements

A federal court rejected TikTok's attempt to use two prior nationwide class action settlements—totaling over $93 million—to dismiss new privacy claims brought by minors alleging violations of the Children's Online Privacy Protection Act. The ruling hinged on whether the current plaintiffs were demonstrably members of the earlier settlement classes based solely on the pleadings, raising critical questions about the scope and enforceability of broad settlement releases in successive privacy litiga
United StatesLitigation, Mediation & Arbitration
Duane Morris LLP
Duane Morris LLP
Article

Supreme Court To Review Constitutionality Of Federal Home-Distilling Ban

The U.S. Supreme Court will review a constitutional challenge to an 1868 federal law banning home distilleries, creating an opportunity to resolve a circuit split between the 5th and 6th Circuit Courts of Appeals. The case centers on whether the prohibition violates the Constitution's Taxation Clause or represents a legitimate exercise of congressional power to prevent tax evasion.
United StatesLitigation, Mediation & Arbitration
Taft, Stettinius & Hollister LLP
Taft, Stettinius & Hollister LLP
Article

Venture Global Update: Galp Prevails In Latest LNG Commissioning Dispute

An ICC tribunal has ruled in favor of Galp in its dispute with Venture Global over the Calcasieu Pass LNG facility, finding that Venture Global breached its obligation to declare the facility operational in a timely manner. This decision adds to a series of contrasting outcomes in similar disputes involving other buyers, with damages yet to be determined in a hearing scheduled for 2027 or 2028.
United StatesLitigation, Mediation & Arbitration
Bracewell LLP
Bracewell LLP
Article

US Federal Court Confirms A Foreign Arbitral Award And Enforces Contractual Post-judgment Interest In Lieu Of The Federal Statutory Rate

A US federal court confirmed a $350 million arbitral award against the Republic of Georgia and enforced a contractual post-judgment interest rate of SOFR plus four percent, compounding monthly, rather than the lower statutory rate. The decision demonstrates how carefully drafted contractual language extending interest "after as well as before judgment" can result in substantially higher recoveries for creditors in international arbitration enforcement proceedings.
United StatesLitigation, Mediation & Arbitration
DLA Piper
DLA Piper
Article

USCIS Final Rule Ends 540-Day Automatic EAD Extension For Key Categories

US Citizenship and Immigration Services (USCIS) published a final rule on October 14, 2026 that permanently ends the automatic extension of up to 540 days for many Employment Authorization Document (EAD) renewals filed on or after October 30, 2025. Affected workers, including adjustment of status applicants and H-4 spouses, may need to stop working if their current EAD expires before USCIS approves the renewal.
United StatesImmigration
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Article

Massachusetts’ 2026 Ballot Questions: What Clients Need To Know

Massachusetts voters will decide nine statewide ballot questions in November 2026 that could fundamentally reshape the state's legal, regulatory, and fiscal landscape. These measures address government transparency, election reforms, housing development, marijuana regulation, firearms laws, and state revenue limits, with implications extending far beyond Election Day to implementation, regulation, and ongoing policy debates.
United StatesGovernment, Public Sector
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Article

Pharmaceutical Policy In Motion Continued: The Trump Administration’s Second Wave Of Drug Pricing Deals

The Trump administration's most-favored-nation pricing initiative has expanded to include nine additional mid-sized pharmaceutical manufacturers, bringing the total coverage to 89% of the brand drug market. These new agreements focus on Medicaid pricing discounts aligned with international rates, while manufacturers commit billions to U.S. manufacturing and research in exchange for exemptions from future pricing mandates and potential tariffs.
United StatesFood, Drugs, Healthcare, Life Sciences
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Article

California’s AI-in-the-Workplace Legislative Blitz: California Legislature Passes Four New Bills That May Affect Employers

The California Legislature’s 2025–2026 session ended with workplace-related artificial intelligence or automated technology in its crosshairs. If Governor Newsom signs this suite of bills, California employers may face a number of new obligations relating to AI-driven surveillance tools, automated decision systems, and other emerging workplace technologies.
United StatesTechnology
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Article

Washington Update: Sustainable Energy & Infrastructure — November 2026

October 2026 brought pivotal shifts in federal energy policy as stakeholders mobilized around the Senate's Bipartisan American Affordability and Jobs Act while the Trump administration's actions on renewable projects tested bipartisan consensus. The Department of Energy designated helium as a critical material amid supply disruptions and committed over $14 billion in nuclear financing, while House Democrats escalated investigations into politically-motivated grant terminations that could reshape oversight a
United StatesGovernment, Public Sector
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Article

MintzTech Connect Industry News: Spotlight On Retro

Retro, a friends-only photo-sharing app built by former Instagram teammates Nathan Sharp and Ryan Olson, is challenging today's algorithm-driven social media landscape with a private, ad-free alternative. The app functions as a weekly photo journal designed to reconnect users with close friends and family, eschewing public feeds, follower counts, and AI-generated content in favor of intimate, subscription-based social spaces.
United StatesMedia, Telecoms, IT, Entertainment
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.