Your phone says a lot about you, or it can if authorities review your location data over an extended period of time. That is why privacy advocates believe it constitutes a search under the Fourth Amendment of the Constitution and that a warrant should be required for phone location information.
But this week a federal appellate court in Virginia ruled 12-3 that no warrant is needed because consumers have no reasonable expectation of privacy in information they willingly surrender to cell phone companies, reports The Intercept.