Still in the Blast Zone- A New Ruling Deflects Some of the Privilege Bomb’s Shrapnel, But Businesses Still Need to Suit Up

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Why it matters

A federal ruling in Warner v. Gilbarco, Inc. (E.D. Mich., Feb. 10, 2026) partially mitigated the impact of the earlier United States v. Heppner (SDNY, Feb. 10, 2026), which held that using public generative AI tools for legal queries waives attorney-client privilege by destroying confidentiality, treating AI as a third-party recipient.[4][6] In Warner, the court protected work product doctrine for AI-assisted materials prepared by a pro se plaintiff, characterizing AI as a neutral tool rather than an agent or adversary, distinguishing it from Heppner's consumer AI use without counsel direction.[4][6] This creates conflicting frameworks: Heppner denies privilege for undirected AI inputs; Warner safeguards litigation preparation outputs.[4][6][10]

Key players include Judge Jed S. Rakoff (Heppner), the Michigan federal court (Warner), defendant Gilbarco, Inc., and broader stakeholders like businesses, lawyers, and regulators facing AI in litigation.[4][6] A third ruling, Morgan v. V2X, Inc. (D. Colo., Mar. 30, 2026), reinforced Warner by protecting AI-assisted materials under Rule 26(b)(3) while requiring disclosure of AI tool names under protective orders.[10] Context stems from rising AI use in legal work post-2025, amid 2025 Federal Rules amendments mandating early privilege protocols in discovery (effective Dec. 1, 2025).[8] Heppner exploded concerns over privilege waivers in criminal and civil cases; Warner deflected some by upholding work product.[4][6]

The April 8, 2026, article highlights ongoing uncertainty from these "incompatible" rulings, urging businesses to adopt strict AI protocols (e.g., counsel-directed use, private tools) amid expanding AI in e-discovery and regulatory probes.[4] Newsworthy now due to circuit split potential, escalating post-breach litigation (e.g., FirstEnergy precedents), and AI's ubiquity, risking waivers in consumer protection, data privacy enforcement.[2][6] No appellate resolution yet widens the "blast zone."[4]

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