AccidentalHealthcareHealthcareMisconfigurationCustomer Data InvolvedPHIIdentity (basic)MediumContained

UW Medicine

bd_3adad2f84e312d48 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 26, 2018

Filed

Feb 20, 2019

To disclose

8 weeks

Affected

5,717state residents only

Linked

5 filings

Confidence

65%

UW Medicine disclosed a data breach in Montana where a database misconfiguration exposed protected health information (PHI) including names and medical record numbers. The incident was discovered on December 26, 2018, and notification letters were sent in February 2019. No SSNs or financial data were involved.

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Incident timeline

undetected · 25 days

discovery → filing · 8 weeks / 56 days

Dec 1, 2018

Begins

Dec 26, 2018

Discovered

Feb 20, 2019

Filed

vs. sector median

3 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Washington State AGbd_4ecc99dad6670eb72019-02-20Verified
HHS OCRbd_721496fd43b47b112019-02-20Verified by operator
California State AGbd_d6512ec60a11cad62019-02-20Verified by operator
Oregon State AGbd_0968762279005b792019-02-25 · +5dCandidate

Name: University of Washington
norm: university of washington
Domain: uwmedicine.org

Name: UW Medicine
norm: uw medicine
Domain: uwmedicine.org
Industry: Healthcarellm

Discovered: Dec 26, 2018
Breach occurred: Dec 1, 2018 – Dec 25, 2018
Undetected for: 25 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 19, 2019
Affected individuals: 5,717state-resident count only
Data types: PHIIdentity (basic)
Attack vector: Misconfiguration
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Regulator citations: reported this incident to the Office of Civil Rights

During the incident: Took immediate steps to remove the information permanently from the internet
Reviewing our internal protocols and procedures to prevent this from happening again
Reported this incident to the Office of Civil Rights
Changes made: Reviewing our internal protocols and procedures to prevent this from happening again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(56 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Washington State AGFeb 20 · first

HHS OCRFeb 20 · first

California State AGFeb 20 · first

Montana State AGFeb 20 · first · this page

Oregon State AG+5d

Pattern: first filing Feb 20 (WA), last Feb 25 (OR) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://dojmt.gov/wp-content/uploads/UWMC-Consumer-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 20, 2019
Raw hash: a3203e0310b21add211ac8b13f0b065accad0b0b9415bd7322aec5714ba79ad2

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityUniversity of Washington

Victim entityUW Medicine

Incidentdiscovered Dec 26, 2018

Stated responseTook immediate steps to remove the information permanently from the internet

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov