Cyberattack on Vehicle Breathalyzer Company Leaves Drivers Stranded Across the U.S.
On March 14, 2026, Intoxalock, a prominent U.S. provider of vehicle breathalyzer devices, fell victim to a cyberattack that has left numerous drivers nationwide unable to start their vehicles. Intoxalock’s devices, integrated into vehicle ignition systems, require drivers to provide a negative alcohol breath sample before the engine can start—a measure often mandated for individuals with prior DUI offenses.
In response to the attack, Intoxalock proactively paused several of its systems to safeguard against further damage. This precautionary measure has disrupted the regular calibration process essential for the proper functioning of their breathalyzer devices. Without timely calibration, these devices can prevent vehicles from starting, effectively immobilizing drivers.
Reports from various states, including Maine, New York, and Minnesota, highlight the widespread impact of the incident. Drivers have reported being unable to start their cars due to missed calibrations, with some vehicles remaining stranded at service centers for extended periods.
Intoxalock has yet to disclose specific details about the nature of the cyberattack, such as whether it involved ransomware or resulted in a data breach. The company has also not provided a timeline for when normal operations will resume. With services spanning 46 states and approximately 150,000 drivers relying on their technology annually, the urgency for a resolution is paramount.
This incident underscores the critical need for robust cybersecurity measures within the automotive industry, especially for technologies integral to vehicle operation and public safety.
