Privacy and Surveillance

The ACLU works to expand the right to privacy, increase the control individuals have over their personal information, and ensure civil liberties are not compromised by technological innovation.

Image collage of a passport, surveillance cameras, and a person using a smartphone.

We are fighting for everyone’s right to privacy and freedom from excessive surveillance.

The lack of strong privacy laws endangers all of us — especially vulnerable communities like immigrants, protesters, and people seeking and providing reproductive and gender-affirming healthcare.

The ACLU advocates for modern data privacy laws and community awareness of excessive surveillance. We do this through our public records requests and ongoing engagement with state and local government.

The Latest

Press Release
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ACLU of Massachusetts Applauds House Data Privacy Bill

H.4746 features critical protections against the abuse of personal data
Press Release
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ACLU of Massachusetts Warns Cities and Towns about Dangers of License Plate Readers

New letter urges officials to stop sharing sensitive data with out-of-state agencies
Press Release
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Labor, Reproductive Rights, Civil Liberties Advocates Applaud State Senate’s Passage of Data Privacy Legislation

The Massachusetts Senate today passed the Massachusetts Data Privacy Act (S.2608), which would provide strong, comprehensive protections for consumers and communities especially vulnerable to the abuse of sensitive personal data.
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Home

Campaign
Feb 2026

Data Privacy Now!

Today, technology has far outpaced privacy law. Data brokers and Big Tech are free to do almost anything they want with our personal information, including selling our cellphone location data on the open market. These practices endanger all of us, but especially vulnerable communities like immigrants, protesters, and people seeking and providing reproductive and gender-affirming healthcare. Lawmakers must pass the Massachusetts Consumer Data Privacy Act (H.4746) to give all Massachusetts residents robust privacy rights in the digital age.
Campaign
Mar 2026

Get The FLOCK Out: Resource Guide

With Flock Safety's license plate reader (LPR) technology, law enforcement agencies across the country can track Massachusetts drivers in real-time — without a warrant, probable cause, or even reasonable suspicion of wrongdoing. Flock's nationwide data sharing model puts our civil rights and civil liberties at risk.
Campaign
Jun 2019

Press Pause on Face Surveillance

Face surveillance gives the government unprecedented power to track our every move. We have a plan.
Campaign
Feb 2019

Data for Justice

We can’t manage what we don’t measure.