Two hackers hijacked a Wired reporter's Jeep Cherokee as it sped at 70 mph on a highway and shut off the vehicle's engine — from 10 miles away.

Wresting control of a car through its infotainment system sounds like the plot of a bad action movie, but harrowing Wired footage released this week shows it's true.

Fiat Chrysler Automobiles released a software patch on Thursday, but then stepped up its driver protection efforts and issued a voluntary recall the next day. FCA wrote in a statement that it denied any defect in the vehicles and was using an "abundance of caution."

"The software manipulation addressed by this recall required unique and extensive technical knowledge, prolonged physical access to a subject vehicle and extended periods of time to write code," said FCA in a statement.

The automaker seemed to reference Charlie Miller and Chris Valasek, two security researchers that took control of reporter Andy Greenberg's vehicle on a St. Louis freeway. Miller and Valasek have been a car hacking duo having previously commandeered vehicles from Ford and Toyota.

These "white hat" hackers who reverse engineer electronic systems controlling modern cars before a malicious attacker figures how to do it.

The live test exposed a vulnerability in the uConnect system found in newer Fiat Chrysler cars. The news, made real by Greenberg's plea to hackers to "stop the test" created shockwaves for drivers.

The recall involves 1.4 million cars and trucks, which is a million more vehicles than FCA estimated were affected. The vehicles affected are those with 8.4-inch touchscreens, including:

2013-2015 Dodge Viper and Ram vehicles

2014-2015 Jeep Grand Cherokee and Cherokee SUV

2014-2015 Dodge Verango

2015 MY Chrysler 200, Chrysler 300 and Dodge Charger sedans

2015 Dodge Challenger sports coupes

The joyful enthusiasm of electronic connectivity for "all the things" is dampened by the reality that hacking risk is higher. There about about 250 million registered vehicles in the U.S., and the automotive industry must contend with safety and security along with consumer demand for having their electronic comforts.