What is your phone telling your rental car?

When I rent a car, it’s fun to get all the bells and whistles – like navigation, hands-free calls and texts, streaming music and even web browsing. But did you know that cars with these features might keep your personal information, long after you’ve returned your rental car? Here are some things to keep in mind when renting a connected car.

Source: FTC Scam Alert Feed
What is your phone telling your rental car?