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Research Note

Uber Greyball Case Source Record

Greyball was the name associated with technology that could give selected rider accounts a different app experience. The public record reviewed for E047 is strongest in P

Aug 4, 20263 min readBy Dalton Anderson

Uber Greyball Case Source Record

Case identity

Greyball was the name associated with technology that could give selected rider accounts a different app experience. The public record reviewed for E047 is strongest in Portland, Oregon, during Uber's unauthorized market operation in December 2014.

Authority map

DateRecordWhat it supportsBoundary
March 3, 2017Portland mayor statementThe city opened a local inquiry after reported allegationsOpening response, not a final finding
March 6, 2017Portland auditor commentaryExisting oversight and data-verification weaknesses mattered to the city's responseGovernance context, not the Greyball audit
March 8, 2017Uber statementTechnology could hide the standard city view and show a different version; Uber prohibited use to target local regulator action going forwardCompany account and policy response
April 2017PBOT Greyball Audit ReportPortland found 17 tagged rider accounts in the local period, 16 identified as government officialsLocal record with incomplete-access limits
May 2017City releasePortland described its investigation and records disputeCity account
May 2017Reuters reportingA federal criminal inquiry had reportedly openedAttributed reporting, not an official disposition
July 2022Guardian reportingUber said all known Greyball or similar-tool investigations were closed or inactive with no findings of wrongdoingCompany statement reported by a newspaper

What is established

Uber publicly acknowledged technology that could present a selected rider with a different version of the city view. Uber said the technology had several purposes, including testing, promotions, fraud prevention, safety, and enforcing terms of service. It also said it would expressly prohibit using it to target action by local regulators.

Portland's transportation bureau found that 17 rider accounts had been tagged during the December 2014 local period and identified 16 as government officials. The report described limits in the records available to the city. Its findings should not be generalized to every city or every use of the technology.

What remains unresolved in this package

Contemporaneous reporting described a Justice Department inquiry. No authoritative Justice Department case page, charge, declination, settlement, or other final federal Greyball disposition was located in the July 2026 review.

Later reporting carried Uber's statement that known investigations were closed or inactive with no findings of wrongdoing. That is relevant, but it is not a substitute for an agency record.

Citation rule

Use procedural verbs that match the source. Uber acknowledged or said. Portland found or reported. A newspaper reported an inquiry. The reviewed record did not establish a final federal disposition.

Sources

Follow the evidence.

  1. daltonanderson.ghost.io: ubers greyball the dark side of tech innovationdaltonanderson.ghost.io
  2. whistleblowers.gov: complaint pagewhistleblowers.gov
  3. uber.com: an update on greyballinguber.com
  4. theguardian.com: uber used greyball fake app to evade police across europe leak revealstheguardian.com
  5. courthousenews.com: GREYBALL AUDIT REPORTcourthousenews.com
  6. justice.gov: jm 9 28000 principles federal prosecution business organizationsjustice.gov
  7. youtu.be: TiC4GmwZ nsyoutu.be
  8. sec.gov: whistleblower protectionssec.gov
  9. open.spotify.com: 32iYem7RXAQ2R7WyHdRrscopen.spotify.com
  10. justice.gov: dljustice.gov
  11. justice.gov: corporate enforcementjustice.gov
  12. whistleblowers.gov: faqwhistleblowers.gov
  13. NLRB protected concerted activitynlrb.gov
  14. portland.gov: statement mayor ted wheeler allegations uber used greyball tool sidestepportland.gov
  15. sec.gov: report possible securities law violationssec.gov
  16. ftc.gov: bringing dark patterns lightftc.gov
  17. justice.gov: criminal division announces publication guidance evaluating corporate compliance programsjustice.gov
  18. whistleblowers.govwhistleblowers.gov
  19. content.govdelivery.com: 198c3edcontent.govdelivery.com
  20. portland.gov: 631393portland.gov
  21. yahoo.com: exclusive uber faces criminal probe 083701705yahoo.com
Uber Greyball Case Source Record