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HL Chronicle of Data Protection Privacy & Information Security News & Trends

Tag Archives: wireless carriers

Posted in Consumer Privacy, Privacy & Security Litigation

U.S. Supreme Court Holds that Historical Cell Site Location Data Is Subject to a Reasonable Expectation of Privacy

In a landmark 5-4 decision, the United States Supreme Court held that the government conducts a search under the Fourth Amendment and therefore, absent exigent circumstances, needs a warrant supported by probable cause when obtaining cell-site location information (i.e., records of the cell towers to which mobile devices connect). The majority reached that conclusion based on the determination that such location records are subject to a reasonable expectation of privacy that continues to apply even though the location records are disclosed to the cell phone user’s wireless carrier, a third party.