AccidentalGovernmentGovernmentMisconfigurationCustomer Data InvolvedIdentity (basic)Health (basic)LowContained

Denton County, Texas

bd_938bd95549c0360d · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 7, 2021

Filed

Aug 27, 2021

To disclose

7 weeks

Affected

12state residents only

Linked

3 filings

Confidence

66%

Full breach record for Denton County, Texas →

Denton County, Texas notified Montana DOJ of a July 7, 2021 incident where a configuration error in a third-party vaccination clinic application potentially exposed personal health information (names, DOB, contact info, vaccination data) to anonymous users. No evidence of misuse was found. The application was disabled and security measures enhanced.

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Incident timeline

discovery → filing · 7 weeks / 51 days

Jul 7, 2021

Discovered

Aug 27, 2021

Filed

vs. sector median

4 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

HHS OCRbd_b0f93496ccc6e42c2021-08-24 · +3dCandidate
Illinois State AGbd_48d3efbdf5d7387a2021-01-01 · +238dCandidate

Name: Denton County, Texas
norm: denton county texas

Name: Denton County, Texas
norm: denton county texas
Industry: Governmentllm

Discovered: Jul 7, 2021
Materiality determined: —
Notification sent: Aug 24, 2021
Affected individuals: 12state-resident count only
Data types: Identity (basic)Health (basic)
Attack vector: Misconfiguration
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection

During the incident: Immediately disabled the third-party application utilized by The County for its COVID-19 vaccination clinics
Commenced an investigation to ensure the security of the third-party application prior to reinstating The County’s use of the application
Worked internally and with the third-party provider to implement additional security measures to increase the security of the third-party provider application utilized by The County
Changes made: Implement additional security measures to increase the security of the third-party provider application utilized by The County
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(51 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Illinois State AGJan 1 · first

HHS OCR+235d

Montana State AG+238d · this page

Pattern: first filing Jan 1 (IL), last Aug 27 (MT) — a 238-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/OCP/notificationLetter-102.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 27, 2021
Raw hash: 19e292134e0e42da374aca5b03b457e1dac585b2f27cc90fc35b0897f547a256

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityDenton County, Texas

Victim entityDenton County, Texas

Incidentdiscovered Jul 7, 2021

Stated responseImmediately disabled the third-party application utilized by The County for its COVID-19 vaccination clinics

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov