EFF: The Supreme Court Finally Takes on Law Enforcement Access to Cell Phone Location Data: 2017 in Review
The Supreme Court Finally Takes on Law Enforcement Access to Cell Phone Location Data: 2017 in Review 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 to make calls, send or receive texts, or browse the Internet, your phone automatically generates “cell site location information” (CSLI) through its interactions with cell towers. This means that cell providers like AT&T, Verizon, and T-Mobile have records of everywhere your phone has been, going back months and even years. And since almost everyone has a cell phone, cell providers have these records for nearly everyone. The government has long argued that it doesn’t need a warrant to obtain CSLI from cell providers because of two 1970’s Supreme Court cases, Smith v. Mary...