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A Device Hidden in Cars Across the US Leaves Them Vulnerable to Hacking and Paralysis. Patch It Now

ID: cded8408-b65c-5b06-a395-88ea2dbe4ec2

STIX ID: report--cded8408-b65c-5b06-a395-88ea2dbe4ec2

Feed Name: WIRED Security

Threat Score
75/100

Date Published: 2026-07-21

Date Updated: 2026-07-21

Author: Andy Greenberg

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UC San Diego researchers discovered a severe Bluetooth vulnerability in the KARR aftermarket car alarm—installed by dealers in an estimated >2 million vehicles—that allows nearby attackers to send radio commands to unlock vehicles, disable ignition, honk horns, flash lights, and track vehicles. The vendor (Acrisure Protection Group) released a firmware update; owners should check for a KARR or SWDS sticker or a small blinking dash button and update via the KARR Security app to mitigate the risk.

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