California Bill Targets AI That Reads and Interprets Human Thoughts

3 min readSources: National Law Review

California Legislature introduced AB 2741 to regulate AI systems interpreting neural data in 2026.

Why it matters: Legal professionals face new compliance challenges as the bill defines privacy and accountability standards for AI analyzing human mental states. This legislation could shape how corporations and law firms manage AI risks and liability related to emerging mind-reading technologies.

  • AB 2741 was introduced on September 23, 2026, targeting AI technologies that analyze neural data to infer mental states.
  • The bill seeks to establish regulations and oversight for AI systems that interpret brain activity, often called mind-reading AI.
  • It follows California’s previous AI regulatory package from September 2024, which included 14 laws covering deepfakes, AI clones, and chatbots.
  • Governor Newsom emphasized balancing innovation and risk management in AI regulation, citing California’s leadership in hosting major AI companies.

On September 23, 2026, the California Legislature introduced Assembly Bill 2741 (AB 2741), aimed at regulating artificial intelligence systems that interpret "neural data"—information derived from brain activity sensors to infer a person’s thoughts or mental states. This kind of AI is often described as "mind reading" AI because it seeks to decode human cognitive processes from neural signals.

AB 2741 sets out to impose clear parameters and oversight on developing and deploying these technologies, addressing privacy, ethical, and data protection concerns specific to neural data use. Legal experts note that neural data includes highly sensitive personal information, and improper handling could expose companies to significant liability.

This bill builds on California’s extensive AI regulatory framework. In September 2024, Governor Gavin Newsom signed 14 AI-related laws targeting issues such as deepfake regulation, prohibitions on AI-generated likenesses of deceased individuals without consent, and chatbots designed to protect vulnerable users. The new legislation expands this approach to cutting-edge AI interpreting brain activity.

Governor Newsom stated, "Home to the majority of the world's leading AI companies, California is working to harness these transformative technologies to help address pressing challenges while studying the risks they present." His administration positions these laws as a way to balance fostering innovation with protecting residents from AI-related harms.

Legal professionals and compliance teams should monitor AB 2741 closely. The bill will likely impose new data collection and transparency requirements, and establish rules about consent and permissible AI applications involving neural data. This may increase regulatory scrutiny and potential litigation risks for corporations deploying such AI.

Independent news outlets such as Politico and TechCrunch have reported on AB 2741’s introduction, confirming its significance as the first U.S. state-level attempt to regulate mind-reading AI systems explicitly.

California’s legislative initiative may serve as a national model given the concentration of AI innovation in the state and growing demands for safeguarding cognitive privacy. Legal teams must prepare for expanded regulatory landscapes and evolving AI compliance obligations in the near future.

By the numbers:

  • 14 AI-related laws passed in September 2024 — covering deepfakes, AI clones, and chatbot safety.
  • September 23, 2026 — date AB 2741 was introduced targeting neural data AI.
  • Majority of leading AI companies located in California — influencing state regulatory focus.

Yes, but: The bill’s specific provisions remain under development, and some AI industry groups argue that overly restrictive rules could stifle innovation in emerging neural technologies.

What's next: The bill will undergo committee review and public hearings in late 2026, with expected amendments before a possible vote in the 2027 legislative session.