As of today — July 1, 2026 — Connecticut's neural data privacy law (SB 1295) takes effect, making it the fourth state to actively enforce protections for one of the most intimate categories of personal information imaginable: data generated by your brain. Connecticut joins Colorado, California, and Montana in recognizing that brainwave data deserves the same legal protections as biometric identifiers like fingerprints and facial scans. With consumer neurotechnology rapidly expanding and more states considering similar legislation, here is what you need to know about this emerging area of privacy law.
What Is Neural Data?
Neural data is information generated by measuring the activity of a person's central nervous system — primarily the brain and spinal cord. This includes data collected by:
- Brain-computer interfaces (BCIs) — devices that translate brain signals into commands for computers or prosthetics
- EEG headsets — consumer and clinical devices that measure electrical activity in the brain
- Neurofeedback apps — software that uses brain activity data to guide meditation, focus, or relaxation sessions
- Gaming BCIs — emerging controllers that let users interact with games using brain signals
- Sleep trackers with EEG sensors — wearable headbands that monitor brainwave patterns during sleep
An important distinction in the law is that neural data specifically refers to central nervous system activity. Peripheral nervous system data — such as heart rate, skin conductance, or galvanic skin response — is generally not covered under neural data protections, even though some of these signals are also collected by consumer wearables.
Why Neural Data Needs Special Protection
Neural data is qualitatively different from other types of personal information. Your brainwave patterns can reveal your emotional states, cognitive abilities, neurological health, attention levels, and potentially even your thoughts and intentions. Unlike a password or credit card number, you cannot change your neural patterns if they are stolen or misused.
The consumer neurotechnology market is growing rapidly. EEG headsets designed for meditation and focus training are widely available for under $300. Sleep-tracking headbands that monitor brainwave activity have become popular wellness devices. Gaming companies are developing brain-computer interfaces that promise hands-free gameplay. Each of these devices collects neural data that, without legal protections, could be shared, sold, or used in ways consumers never anticipated.
The Neural Data Goldilocks Problem
Lawmakers face a fundamental challenge in defining what counts as neural data. Define it too narrowly, and companies can circumvent the law by processing raw brain signals into derived metrics that fall outside the definition. Define it too broadly, and you risk capturing peripheral biometric data that is already regulated under existing biometric privacy laws. States are taking different approaches to this problem, which means protections vary significantly depending on where you live.
Connecticut's New Neural Data Law
Connecticut's SB 1295, signed into law in June 2025, takes effect on July 1, 2026. The law adds neural data to the state's existing consumer privacy framework and establishes two key requirements:
- Explicit opt-in consent before processing: Businesses must obtain clear, affirmative consent from consumers before collecting or processing brainwave data from Connecticut residents. This is a higher standard than the opt-out model used for most other types of personal data.
- Separate consent before selling: If a business wants to sell neural data to third parties, it must obtain a separate, specific consent from the consumer. General terms-of-service agreements are not sufficient.
These requirements apply to any business that processes the neural data of Connecticut residents, regardless of where the business is located.
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Start your free scanHow Other States Handle Neural Data
Colorado
Colorado was one of the first states to add neural data to its privacy law. The state classifies neural data as sensitive personal data, requiring opt-in consent for collection and processing. Colorado's approach has been influential in shaping other states' legislation.
California
California amended its Consumer Privacy Act to include neural data protections. Given California's large tech economy and the concentration of neurotechnology companies in the state, this has significant implications for the industry. California is also considering expanded neural data protections in 2026.
Montana
Montana includes neural data in its Consumer Data Privacy Act's definition of sensitive data, requiring heightened protections including opt-in consent.
States With Active Bills
Several additional states have neural data bills in various stages of the legislative process:
- Virginia — Proposed amendments to the Virginia Consumer Data Protection Act
- Alabama — New comprehensive privacy bill with neural data provisions
- New York — Neural data included in proposed consumer privacy legislation
- Illinois — Considering adding neural data to its existing Biometric Information Privacy Act (BIPA)
- Vermont — Neural data protections included in proposed data privacy legislation
The patchwork of state laws creates complexity for both consumers and businesses. A person using an EEG meditation headset in Connecticut now has explicit opt-in protections for their brainwave data, while someone using the same device in a state without neural data protections has no specific legal recourse if that data is shared or sold.
The Privacy Risks of Consumer Neurotechnology
The practical risks of unprotected neural data extend beyond abstract concerns about brainwave privacy:
- Behavioral profiling: Neural data can reveal attention patterns, emotional responses to stimuli, and cognitive states that could be used for targeted advertising or pricing discrimination.
- Health inferences: Brainwave patterns can indicate neurological conditions, sleep disorders, stress levels, and other health information that employers or insurers might want to access.
- Workplace monitoring: Companies are already marketing EEG headsets to employers as tools for measuring employee focus, engagement, and fatigue. Without legal guardrails, neural monitoring could become a condition of employment.
- Data aggregation: Neural data combined with other personal information from data brokers creates extraordinarily detailed profiles of individuals' cognitive and emotional characteristics.
Protecting Your Neural Data Today
Regardless of where you live, you can take steps to protect your neural data: read the privacy policy of any neurotechnology device before using it, disable cloud sync and data sharing features when possible, and exercise any opt-out rights available to you. If you use a consumer EEG headset or BCI, check whether the manufacturer collects and shares your brainwave data with third parties.
What You Can Do
Know Your Rights
If you live in Connecticut, Colorado, California, or Montana, businesses must obtain your explicit opt-in consent before processing your neural data. They cannot bury consent in a terms-of-service agreement. If you believe a company has processed your brainwave data without consent, file a complaint with your state's attorney general.
Audit Your Devices
Review every wearable device, health app, and wellness tool you use. Check whether any of them collect EEG data, brainwave patterns, or other neural signals. Read the privacy policy to understand how that data is stored, shared, and retained. Delete historical data you no longer need.
Reduce Your Overall Data Footprint
Neural data is most dangerous when combined with other personal information. The more data that exists about you on data broker sites — your name, address, employment history, health information, and online activity — the more valuable your neural data becomes to companies that want to build comprehensive profiles. Reducing your exposure on data broker sites limits what can be linked to your neural data.
PrivacyOn removes your personal information from over 100 data broker sites and monitors for re-listings. While no data removal service can directly control how neurotechnology companies handle your brainwave data, reducing the amount of personal information available about you online means there is less data to combine with neural signals to create detailed behavioral profiles. In an era where your thoughts may be the next frontier of data collection, every layer of privacy protection matters.