State Guide
Montana Privacy & Data Security Laws
Every statute below can apply to a business handling Montana residents' data, depending on your revenue, the number of Montana consumers you process, and what kind of data you collect. This is a general reference, not a determination for your specific business — run the full questionnaire to see which of these actually apply to you.
Comprehensive Privacy Law · 1
A 2025 amendment lowered Montana's thresholds: now applies at 25,000+ Montana consumers (excluding payment-only data, down from 50,000), or 15,000+ if 25%+ of revenue comes from selling personal data (down from 25,000). The same amendment narrowed the nonprofit exemption to insurance-fraud-detection organizations only — most nonprofits are no longer exempt.
Data Security & Breach Notification · 1
Requires notifying affected residents (and often the state AG/regulator) after a breach of unencrypted personal information such as SSNs, driver's license/state ID numbers, or financial account numbers. Applies regardless of company size whenever you hold covered personal information about a resident of this state.
Genetic Privacy · 1
Regulates direct-to-consumer genetic testing companies and/or genetic data generally — typically requiring express consent before collecting, using, or disclosing genetic data, and consent (or destruction) requirements for biological samples. 2025 amendment extends coverage to neurotechnology/neural data and adds research/clinical-trial exemptions.