Electric cars manufactured by Nissan surreptitiously leak detailed information about a driver's location, speed and destination to websites accessed through the vehicle's built in RSS reader, a security blogger has found.

The Nissan Leaf is a 100-percent electric car that Nissan introduced seven months ago. Among its many innovations is a GSM cellular connection that lets drivers share a variety of real-time data about the car, including its location, driving history, power consumption, and battery reserves. Carwings, as the service is known, then provides a number of services designed to support “eco-driving,” such as break downs of the vehicle's energy efficiency based on comparisons with other owners.