Starlink shuts down its GPS-style cheat code. Researchers may unlock it anyway.

Researchers showed that passive navigation can extract position from Starlink and other satellite communications signals.

Their method reached about 2-meter accuracy in roughly 20 seconds, using Doppler and signal measurements.

The team tested the approach on vehicles, balloons, drones, and ships across different conditions.

It could become a practical global backup for GPS by leveraging existing satellite internet and communications constellations.