The Court just raised the default bar for getting precise location histories from companies. A map-shaped demand is no longer enough on its own; investigators now need a warrant and probable cause, which narrows bulk geofence sweeps and pushes requests toward smaller targets or device-side collection.
The 6-3 ruling says people have a reasonable expectation of privacy in cell-phone location information held by companies such as Google. It applies to historical location data and geofence requests, and it stops short of banning them, so the practical change is in how broadly law enforcement can reach into company-held location records.
The broader effect is procedural, not absolute. Platforms that store precise location history now sit inside a tighter legal threshold, and investigative workflows that leaned on broad location pulls will have to adapt to more constrained requests.