Regulates the collection, storage, and processing of biometric data and biometric recognition technology in Massachusetts. Imposes duties of loyalty, care, and confidentiality on any private person or entity that handles biometric data, including consent requirements, a ban on biometric data sales, data security obligations, and anti-discrimination protections for users who withhold consent. Prohibits the use of biometric data for consequential automated decisions (employment, housing, credit, etc.) and bans the operation of biometric recognition technology equipment in any place open to the general public. Enforcement is through the Attorney General under chapter 93A, with violations of the decision-making and surveillance restrictions declared per se unfair or deceptive acts. Government entities, law enforcement, and intelligence agencies are excluded from coverage.