When Sydney Ford learned that a former University of South Carolina classmate had been killed after mistaking a stranger’s car for an Uber ride, she started thinking about how easy such a mix-up could be.

“You never know who you’re getting in the car with,” said Ford, who’s now in law school studying to become a defense attorney, to the Washington Examiner. “Lyft signs and Uber signs can all be purchased online, and any car can pull up to an area where a lot of students or other people are waiting for a ride-share, like a downtown area, and just see who falls for it.”