Cyberattack on vehicle breathalyser firm leaves drivers stranded across US

A cyberattack on US vehicle breathalyser company Intoxalock has left drivers across the country stranded and unable to start their vehicles. The firm said on its website that it is "currently experiencing downtime". Intoxalock sells breathalyser devices that fit into vehicle ignition switches, and are used by people required to provide a negative alcohol breath sample to start their car.