location tracking

Deeplinks Blog by Nathaniel Sobel | November 30, 2020

EFF Urges Federal Appeals Court to Rehear Case Involving Unconstitutional Baltimore Aerial Surveillance Program

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Last week, EFF urged the full U.S. Court of Appeals for the Fourth Circuit to reconsider a split three-judge panel’s ruling that the Baltimore Police Department’s aerial surveillance of the city’s more than half a million residents is constitutional. In a friend-of-the-court brief—which was joined by the Brennan...

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Deeplinks Blog by Jennifer Lynch, Nathaniel Sobel | October 28, 2020

EFF Files Amicus Brief Arguing That Law Enforcement Access to Wi-Fi Derived Location Data Violates the Fourth Amendment

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With increasing frequency, law enforcement is using unconstitutional digital dragnet searches to attempt to identify unknown suspects in criminal cases. In Commonwealth v. Dunkins, currently pending before the Pennsylvania Supreme Court, EFF and the ACLU are challenging a new type of dragnet: law enforcement’s use of WiFi data...

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Document | October 2, 2020

BRIEF OF AMICI CURIAE AMERICAN CIVIL LIBERTIES UNION, AMERICAN CIVIL LIBERTIES UNION OF PENNSYLVANIA, AND THE ELECTRONIC FRONTIER FOUNDATION IN SUPPORT OF APPELLANT ALKIOHN DUNKINS

Read more about BRIEF OF AMICI CURIAE AMERICAN CIVIL LIBERTIES UNION, AMERICAN CIVIL LIBERTIES UNION OF PENNSYLVANIA, AND THE ELECTRONIC FRONTIER FOUNDATION IN SUPPORT OF APPELLANT ALKIOHN DUNKINS

Deeplinks Blog by Aaron Mackey | May 28, 2019

If Regulators Won’t Stop The Sale of Cell Phone Users’ Location Data, Consumers Must

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A Motherboard investigation revealed in January how any cellphone users’ real-time location could be obtained for $300. The pervasiveness of the practice, coupled with the extreme invasion of people’s privacy, is alarming.The reporting showed there is a vibrant market for location data generated by everyone’s cell phones—information that can...

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Deeplinks Blog by Andrew Crocker, Jennifer Lynch | June 22, 2018

Victory! Supreme Court Says Fourth Amendment Applies to Cell Phone Tracking

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The Supreme Court handed down a landmark opinion today in Carpenter v. United States, ruling 5-4 that the Fourth Amendment protects cell phone location information. In an opinion by Chief Justice Roberts, the Court recognized that location information, collected by cell providers like Sprint, AT&T, and Verizon, creates a...

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Deeplinks Blog by Jennifer Lynch, Andrew Crocker | December 28, 2017

The Supreme Court Finally Takes on Law Enforcement Access to Cell Phone Location Data: 2017 in Review

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Protecting the highly personal location data stored on or generated by digital devices is one of the 21st century’s most important privacy issues. In 2017, the Supreme Court finally took on the question of how law enforcement can get ahold of this sensitive information.Whenever you use a cell phone, whether...