AI chats ruled admissible in court as US judge denies legal privilege, prompting law firms to warn clients their conversations with tools like Claude can be seized

A recent U.S. federal court ruling has held that chats with public generative AI systems like Claude, ChatGPT, and similar tools are not protected by attorney–client privilege or the work‑product doctrine, meaning they can be obtained in discovery and used as evidence in court. The decision arose in United States v. Heppner in the Southern District of New York, where Judge Jed Rakoff ordered a criminal defendant to turn over his Claude AI chat logs that discussed potential legal exposure and strategy, rejecting arguments that they were privileged legal materials. The court emphasized that privilege attaches only to confidential communications between a client and a human lawyer (or their agent), and a public AI chatbot is neither; it also noted that the platform’s terms of service disclosed that chats could be retained, used for training, and shared with third parties, undermining any claim of confidentiality. This ruling has prompted law firms and legal commentators to warn clients that anything typed into consumer-facing AI tools about their case may be discoverable, even if chats have been deleted from the user interface. Because the defendant in Heppner used Claude on his own, outside counsel’s direction, the court also found that the work‑product doctrine did not apply, reinforcing that independently generated AI content about a case can be treated like any other non‑privileged electronic record. The decision is being described as one of the first written federal rulings on AI chats and privilege, and it signals that courts are likely to treat AI chat histories as ordinary electronically stored information (similar to emails or texts) rather than as protected legal communications. Law firms are now advising clients to avoid using public AI tools for case‑specific facts or strategy and, where AI is used, to consider enterprise or law‑firm‑controlled systems with contractual confidentiality protections to preserve privilege.

✨ AI-generated background, compiled from web sources — not editorial content.

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