A wave of Hyundai and Kia thefts over the past year driven by social media has made headlines across the country, and a new report suggests it hasn't been exaggerated.

Several models from the related brands built from 2011 to 2021 did not have immobilizers to prevent them from being started without a key present.

Criminals discovered that 2011 to 2021 Kias and 2015 to 2021 Hyundais equipped with ignitions that use a physical key, rather than a wireless key fob and push-button, could be started by using the tip of a USB cable, and the technique was posted online last year.

Tens of thousands of the cars have been stolen since, some of them by teens not even old enough to have a driver's license.

THIS PICKUP TRUCK WAS THE MOST-STOLEN VEHICLE OF 2021

KEY

Hyundai and Kia models can be started with a USB cable tip. (FOX 6)

A new analysis by the Insurance Institute for Highway Safety's Highway Loss Data Institute (HLDI) found that the theft claim frequency was more than 80% higher for 2015-2019 model-year Kias and Hyundais combined than the average of all other brands.

According to the HLDI, 96% of the vehicles sold in 2015 by other automakers had immobilizers, up from 62% in 2000, but only 26% of Kias and Hyundais did.

Hyundais

Some 2011-2021 Kias and 2015-2021 Hyundais are susceptible to the USB hack. (Patrick T. Fallon/Bloomberg via Getty Images)

"Our earlier studies show that vehicle theft losses plunged after immobilizers were introduced," HLDI Senior Vice President Matt Moore said.

"Unfortunately, Hyundai and Kia have lagged behind other automakers in making them standard equipment."

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Hyundai on Oct. 1 will start selling an aftermarket security system through its dealers that addresses the issue, while both it and Kia have been working with law enforcement in some areas to distribute steering wheel locks to concerned owners.

Several class-action lawsuits have been filed against the automakers in relation to the problem.

Four Kia and Hyundai models also made the top 20 list among 2019 to 2021 model-year vehicles, but the Dodge Charger SRT Hellcat muscle car led the way followed by Dodge Chargers powered by the brand's Hemi V8 engines.

The Dodge Charger SRT Hellcat is stolen more frequently than any other car.

The Dodge Charger SRT Hellcat is stolen more frequently than any other car. (Dodge)

Based on the number of claims made per 1,000 vehicle years insured, the Charger SRT Hellcat was stolen more than 50 times more frequently than the average vehicle and the Charger Hemi nearly 15 times more often.

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The Infiniti Q50 sedan (8.7x), Dodge Challenger coupe (5.2x) and Land Rover Range Rover (5x) rounded out the top five.