Every phone leaves a trail — Supreme Court holds location data is protected by the Fourth Amendment
The U.S. Supreme Court has ruled that location data generated by mobile phones is protected under the Fourth Amendment, meaning law enforcement generally needs a warrant to access it. The decision extends constitutional privacy protections to the digital trails that modern phones continuously produce.
Why this matters: Your phone logs where you sleep, where you worship, where you see a doctor, and who you spend time with. Until now, police could often get that data without a warrant, just by asking your carrier. This ruling treats that trail as yours, not the phone company's to hand over freely. That matters for everyone, not just people under investigation. It closes a gap that let the government map private life without ever knocking on a door.
Who should care: Privacy officers · Cybersecurity · General readers · Policy
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