Mazda MAZDA3 owners have reported 1 problem related to cybersecurity (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mazda MAZDA3 based on all problems reported for the MAZDA3.
Karr bluetooth security car alarms that are installed by dealers are programmed with a fixed shared secret key that can be used to wirelessly configure and control the alarms by unauthorized users. This exposes the alarms to an unauthorized user performing operations that should only be achieved by authorized dealers and users. Our testing shows the unauthorized user can perform operations including locking and unlocking doors, immobilizing the ignition, honking the horn, and blinking the lights, both when the car is off and when the engine is running. The unauthorized user can also perform these operations on alarms that have not been paid for by consumers because the alarm is left in the car even if the consumer does not pay for it, and an unauthorized user can change the mode of the alarm while the car is running to any mode, including dealer, installer, and user. I'm a professor at university of California, san diego. My team and I have been investigating this alarm for over a year and we discovered this vulnerability.
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