General Motors says it has stopped sharing details about how people drive its cars with two data brokers that created risk profiles for the insurance industry. "The decision followed a New York Times report this month that GM had, for years, been sharing data about drivers’ mileage, braking, acceleration and speed with the insurance industry. The drivers were enrolled — some unknowingly, they said — in OnStar Smart Driver, a feature in G.M.’s internet-connected cars that collected data about how the car had been driven and promised feedback and digital badges for good driving," according to The …