Using a custom-made WiFi device and a smartphone, a Hiroshima City University professor was able to hack an Internet-connected car.

Hiroyuki Inoue, an associate professor at Hiroshima City University’s Graduate School of Information Sciences, used a 2013 Toyota Corolla Fielder Hybrid, according to a report in the Japan Times.

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Inoue was able to open and close the car’s doors, alter speedometer displays, and block the accelerator.

To achieve this, the professor had to create a custom WiFi device, which cost him around $82, and he later installed on the car by plugging it into a port under the steering wheel.

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This port is in there to allow mechanics to perform maintenance on the car and has a direct connection to the car’s internal CAN bus, where data collects from all the electronic devices.

Using his smartphone, Inoue then connected to this device and instructed it to give false readings or perform various other actions on the car’s components.

Inoue was also able to paralyze the car by sending it huge amounts of information, the equivalent of a denial of service (DoS) attack.

As other vehicles across the globe are hackable, this is another example raising questions about the security of Internet-connected cars.

Toyota and the Japan Automobile Manufacturers Association are aware of Inoue’s results, and both said they will be taking action.

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