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
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
| Date | Record | What it supports | Boundary |
|---|---|---|---|
| March 3, 2017 | Portland mayor statement | The city opened a local inquiry after reported allegations | Opening response, not a final finding |
| March 6, 2017 | Portland auditor commentary | Existing oversight and data-verification weaknesses mattered to the city's response | Governance context, not the Greyball audit |
| March 8, 2017 | Uber statement | Technology could hide the standard city view and show a different version; Uber prohibited use to target local regulator action going forward | Company account and policy response |
| April 2017 | PBOT Greyball Audit Report | Portland found 17 tagged rider accounts in the local period, 16 identified as government officials | Local record with incomplete-access limits |
| May 2017 | City release | Portland described its investigation and records dispute | City account |
| May 2017 | Reuters reporting | A federal criminal inquiry had reportedly opened | Attributed reporting, not an official disposition |
| July 2022 | Guardian reporting | Uber said all known Greyball or similar-tool investigations were closed or inactive with no findings of wrongdoing | Company 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.
- daltonanderson.ghost.io: ubers greyball the dark side of tech innovationdaltonanderson.ghost.io
- whistleblowers.gov: complaint pagewhistleblowers.gov
- uber.com: an update on greyballinguber.com
- theguardian.com: uber used greyball fake app to evade police across europe leak revealstheguardian.com
- courthousenews.com: GREYBALL AUDIT REPORTcourthousenews.com
- justice.gov: jm 9 28000 principles federal prosecution business organizationsjustice.gov
- youtu.be: TiC4GmwZ nsyoutu.be
- sec.gov: whistleblower protectionssec.gov
- open.spotify.com: 32iYem7RXAQ2R7WyHdRrscopen.spotify.com
- justice.gov: dljustice.gov
- justice.gov: corporate enforcementjustice.gov
- whistleblowers.gov: faqwhistleblowers.gov
- NLRB protected concerted activitynlrb.gov
- portland.gov: statement mayor ted wheeler allegations uber used greyball tool sidestepportland.gov
- sec.gov: report possible securities law violationssec.gov
- ftc.gov: bringing dark patterns lightftc.gov
- justice.gov: criminal division announces publication guidance evaluating corporate compliance programsjustice.gov
- whistleblowers.govwhistleblowers.gov
- content.govdelivery.com: 198c3edcontent.govdelivery.com
- portland.gov: 631393portland.gov
- yahoo.com: exclusive uber faces criminal probe 083701705yahoo.com