Microprocessors direct braking, acceleration and even the horn these days. “Because they are hidden, people don’t often understand that there can be anywhere from 30 to 40 microprocessors in most cars and even up to 100 different ones running different functions in some vehicles,” says Stephan A. Tarnutzer, chief operating officer for DGE Inc., which provides electronic designs and consulting for auto manufacturers and suppliers.
But could a hacker compromise these systems? Recently, several news reports have raised the issue of car-hacking risks, including:
- Vehicle disablement. After a disgruntled former employee took over a Web-based vehicle-immobilization system at an Austin, Texas, car sales center, more than 100 drivers found their vehicles had been disabled or their horns were honking out of control.
- Tire pressure system hacking. Researchers from the University of South Carolina and Rutgers University were able to hack into tire pressure monitoring systems. Using readily available equipment and free software, the researchers triggered warning lights and remotely tracked a vehicle through its unique monitoring system.
- Disabling brakes. Researchers at the University of Washington and University of San Diego created a program that would hack into onboard computers to disable brakes and stop the engine. The researchers connected to onboard computers through ports for the cars’ diagnostic system.
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