U.S. DOJ demands Apple and Google unmask over 100k users of car-tinkering app

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TLDR

  • DOJ subpoenaed Apple, Google, Amazon, and Walmart for personal data on 100k+ users of EZ Lynk’s Auto Agent emissions-defeat app.

Key Takeaways

  • Subpoenas issued March-April 2026 request names, addresses, phone numbers, and purchase histories tied to the Auto Agent app and OBD hardware dongle.
  • DOJ sued EZ Lynk in 2021 under the Clean Air Act for marketing defeat devices that bypass diesel emissions controls; Section 230 immunity defense was rejected in 2025.
  • EZ Lynk argues the app serves legitimate diagnostics and tuning purposes; its lawyers call the subpoenas a Fourth Amendment overreach.
  • EFF and EPIC warn that innocent users who downloaded the app for routine diagnostics face unintended legal exposure.
  • Apple and Google are reportedly preparing legal challenges; outcome could set precedent for app store data in regulatory enforcement.

Hacker News Comment Review

  • Commenters questioned the DOJ’s investigative logic: if witnesses and usage evidence are needed to prove the case, why was the case brought without them already in hand?
  • The case is read as part of a broader surveillance trend, with concern that mass app-store subpoenas normalize bulk PII requests well beyond what enforcement actually requires.

Notable Comments

  • @embedding-shape: Points out a circular problem: the government claims it needs user data to find witnesses, yet the investigation itself implies prior evidence of wrongdoing.
  • @EGreg: Frames this as part of escalating state surveillance, linking to broader documented pattern beyond this single case.

Original | Discuss on HN