Ride-hailing apps such as Uber, Lyft and countless smaller startups are afforded access to information you might prefer other people didn't know. In most cases, you're providing explicit details concerning your whereabouts, as well as your destination. As long as that data stays private, it's all gravy: You safely get home from the bar, the driver and service get paid, and no-one needs to talk about why you were out at 2AM on school night. But what if anyone - strangers, exes, coworkers, your boss - could find out where you've been? What if they knew your routine? Would you care?