Uber ran secret tools to dodge cops and spy on Lyft's own drivers. Today it's the only one of the four -- Uber, Lyft, DoorDash, Instacart -- telling you how long it keeps your location data. Read all four companies' privacy policies: only Uber gives a specific number. No federal law requires one -- two bills died in Congress. California residents do have a real, enforceable fix. https://www.thebluf.news/p/rideshare-delivery-app-secret-tools-data-retention #Privacy #Surveillance