Courts Are Banning Public AI Tools for Privacy Reasons – Here’s What You Should Know

You might think of AI tools like ChatGPT, Claude, or Otter.ai as harmless helpers for taking notes or drafting documents. But a growing number of judges are banning their use during court discovery proceedings, citing serious privacy risks. These rulings aren’t just legal arcana—they highlight a privacy problem that affects anyone who handles sensitive data.

What happened

According to Bloomberg Law, several judges have recently ordered attorneys not to use public AI tools during the discovery phase of lawsuits. Discovery is the process where both sides exchange evidence, depositions, and confidential documents. The concern: when a lawyer uploads a deposition transcript or a corporate contract into a public AI service, that data gets sent to the AI company’s cloud. It can be stored, used to train models, or exposed in a breach. Judges are now treating this as a potential privacy violation and a threat to attorney–client privilege.

A related report from Bloomberg Law also flags that AI notetaking tools pose wiretapping, discovery, and ethical pitfalls. For example, if someone uses an AI notetaker during a deposition without consent, it could violate state wiretapping laws. And even when consent is obtained, the recorded conversation becomes part of the AI provider’s data ecosystem—subject to subpoena or accidental disclosure.

These rulings are still emerging, and the exact scope varies by jurisdiction. But the trend is clear: courts are waking up to the fact that public AI platforms aren’t private, and they’re taking steps to limit their use in legal settings.

Why it matters

You don’t have to be a lawyer or a litigant for this to affect you. The same privacy risks apply whenever you use a public AI tool to process sensitive information—like confidential work documents, personal financial details, medical history, or private conversations. Most free AI assistants send your input to remote servers, where it’s processed and often retained. The privacy policies of these services typically say they can use the data for model training or share it with third parties.

Consider a few everyday scenarios:

  • You paste a draft of a sensitive business contract into ChatGPT to “summarize this.” That contract text leaves your control.
  • You use an AI notetaker during a therapy session or a meeting about a personal legal matter. The audio and transcript are stored on a company’s servers, potentially accessible to employees or hackers.
  • You ask an AI assistant to help you draft a will or a nondisclosure agreement. The details you share become part of the service’s training data.

In each case, you’ve effectively handed over information that you might expect to remain private. The court rulings are a reminder that “public AI” is not the same as “private AI”—and that the consequences of losing control over your data can be serious.

What readers can do

You don’t need to stop using AI tools. But you should adjust how you use them, especially when handling confidential information.

1. Know which AI tool you’re using and how it handles data. Read the privacy policy—or at least the data retention section. Some services, like ChatGPT, let you turn off chat history or use a privacy mode that prevents data from being used for training. Others, like Copy.ai or Notion AI, have different policies.

2. Use local or private AI alternatives. If you need to process sensitive documents, consider running a local AI model on your own computer. Tools like LLaMA, Mistral, or GPT4All can be installed and run offline. No data leaves your device. For notetaking, use encrypted apps like Standard Notes or Joplin that offer local storage.

3. Avoid pasting confidential information into public AI chatbots. This is the simplest rule. Don’t paste full texts of contracts, medical reports, or personal correspondence. If you must use an AI tool, anonymize or redact names, dates, and other identifiers.

4. Be cautious with AI notetakers in meetings or conversations. Before recording any conversation with an AI tool, check consent laws in your jurisdiction. Even if legally fine, assume the recording could be subpoenaed or leaked. For meetings that involve sensitive topics, use a non-AI notetaker or a dedicated, encrypted recorder.

5. If you’re a professional handling sensitive data, set internal policies. Law firms, medical offices, and financial advisors should consider banning public AI tools for work-related tasks until they have reviewed the security and privacy implications. Some courts have already done this; it’s reasonable to follow their lead.

Sources

  • Bloomberg Law, “Judges’ Public AI Bans During Discovery Zero in on Privacy Risk” (June 5, 2026)
  • Bloomberg Law, “AI Notetaking Poses Wiretapping, Discovery, and Ethical Pitfalls” (January 28, 2026)

These rulings are still developing, and not every court has taken the same stance. But the underlying privacy concern is real. Whether you’re in a courtroom or just trying to draft a personal document, treating public AI tools as private infrastructure is a risk you can avoid.