Washington Post: Automakers rush to add wireless features, leaving our cars open to hackers

"As the number of connected devices explodes — from roughly 2 billion in 2010, the year of the Texas Auto Center incident, to an estimated 25 billion by 2020 — security researchers have repeatedly shown that most online devices can be hacked. Some have begun calling the “Internet of Things,” known by the abbreviation IOT, the “Internet of Targets.”"

https://www.washingtonpost.com/sf/business/2015/07/22/hacks-on-the-highway/