The U.S. Department of Justice is seeking personal data on potentially hundreds of thousands of drivers who downloaded EZ Lynk’s Auto Agent app , escalating a years-long legal battle over vehicle emissions controls. Subpoenas issued to Apple, Google, Amazon, and Walmart request names, addresses, phone numbers, and purchase histories tied to the app and its accompanying hardware. Background on the Case The DOJ first sued EZ Lynk in 2021, accusing the Cayman Islands-based company of violating the Clean Air Act by marketing and selling “defeat devices.” These tools allegedly allow users to bypass factory emissions controls on diesel vehicles, primarily through the EZ Lynk Auto Agent app paired with an onboard diagnostic (OBD) hardware dongle. EZ Lynk strongly denies the allegations, emphasizing that its products serve legitimate purposes: monitoring vehicle performance, applying software updates, and enabling legitimate modifications and diagnostics.…