(BBC News) A sizeable proportion of 100 million Volkswagen Group cars sold since 1995 can be unlocked remotely by hackers, a team of researchers has said.
The problem affects a range of vehicles manufactured between 1995 and 2016 - including VWs and models from the company's Audi, Seat and Skoda brands.
A homemade radio costing about £30 is the only hardware an attacker requires.
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Volkswagen said it was working with the researchers and added that several new vehicles were unaffected by the issue.