Device hidden in millions of cars leaves them vulnerable to hacking, unlocking, tracking, and disabling

Millions of drivers with a dealer-installed KARR alarm should download the iPhone app and install the latest firmware update now, because a security flaw can let nearby attackers unlock or immobilize more than two million vehicles.

• If you've got this dealer-installed car alarm, patch it today with your iPhone
• A Device Hidden in Cars Across the US Leaves Them Vulnerable to Hacking and Paralysis. Patch It Now