DOJ Demands Apple and Google Release EZ Lynk App User Data in Emissions Probe

The United States Department of Justice has subpoenaed Apple and Google to provide data on at least 100,000 users who downloaded the EZ Lynk Auto Agent app. The request is part of an ongoing emissions probe targeting EZ Lynk, a company accused of helping customers modify vehicles to violate the Clean Air Act.

Background of the Legal Battle

The DOJ first sued EZ Lynk in 2021, alleging the company refused to cooperate with an Environmental Protection Agency investigation. At the center of the dispute is the accusation that EZ Lynk intentionally assisted customers in tampering with vehicle emissions systems to bypass regulatory standards.

Privacy Concerns Over User Data Request

Privacy advocates and EZ Lynk have raised concerns over the DOJ’s subpoena, which seeks user identities, addresses, and purchase histories. In a joint court filing, EZ Lynk argued that the request is excessive and unnecessary for the investigation.

“These requests for potentially hundreds of thousands of people’s PII go well beyond the needs of this case and create serious privacy concerns,” EZ Lynk’s lawyers wrote. “Investigating this claim does not require identifying each person who has used the product.”

The DOJ countered that users who agreed to EZ Lynk’s terms and conditions “no longer [have] a cognizable privacy interest as to that information.”

The federal agency also subpoenaed Walmart and Amazon for names and addresses of customers who purchased EZ Lynk Auto Agent hardware.

EZ Lynk’s Dual-Use Technology

EZ Lynk Auto Agent is marketed as an OBDII tool for vehicle diagnostics, fleet management, and electronic logging. While some users employ it for legitimate purposes, evidence shows others use it to disable emissions systems, such as reflashing engine control units after removing diesel particulate filters or exhaust gas recirculation components.

Contradictions in EPA Enforcement

The DOJ’s pursuit of EZ Lynk contrasts with the Environmental Protection Agency’s softened stance on emissions enforcement. Since 2023, the EPA has deprioritized emissions defeat devices and announced it would no longer pursue criminal charges for OBDII tampering. In a notable move, President Trump pardoned a convicted diesel tuner jailed for removing emissions components from trucks.

Despite these shifts, the legal battle between the DOJ and EZ Lynk persists.