Every phone leaves a trail — Supreme Court holds location data is protected by the Fourth Amendment
The Supreme Court has ruled that location data generated by mobile phones is protected under the Fourth Amendment, meaning the government generally needs a warrant to access it.
Why this matters: Your phone tracks where you go. It cannot help it. Every time it pings a tower or connects to a network, it leaves a record. For years, prosecutors and investigators could get that record without a warrant, treating it as just another business document. This ruling says no. Location data is personal enough, and revealing enough, that the Constitution protects it. That matters because a detailed location history can show your doctor, your church, your political meetings, your relationships. The government now has to convince a judge before it can read that story about you.
Who should care: Privacy officers · Cybersecurity · General readers · Policy
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