HackingGovernmentGovernmentDelayed DiscoveryIdentity (basic)LowContained

City of McKinney, Texas

bd_9441cd0db25cfd7f · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 14, 2024

Filed

Feb 4, 2025

To disclose

12 weeks

Affected

Not disclosed

Linked

9 filings

Confidence

66%

Full breach record for City of McKinney, Texas →

The City of McKinney experienced unauthorized network access on October 31, 2024, discovered on November 14, 2024. The incident may have exposed names and other personal information. The City engaged forensic consultants, notified law enforcement (FBI, DHS, Texas Department of Information), and secured systems. Affected individuals are offered one year of credit monitoring and fraud assistance.

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Vermont clock✗ VT AG >45 bday12 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 14 days

discovery → filing · 12 weeks / 82 days

Oct 31, 2024

Begins

Nov 14, 2024

Discovered

Feb 4, 2025

Filed

vs. sector median

+1 wks slower

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinc_ransombd_2fb2e82fb02eb0df2025-02-09 · +6dVerified by operator

Regulatory filings (7) · sorted by filing gap

Maine State AGbd_00ba8848cdc6de8a2025-02-04Verified
Indiana State AGbd_626662782dbb32462025-02-04Verified
Montana State AGbd_67c269644968b5222025-02-04Verified
Maryland State AGbd_b25eaab826de77922025-02-04Verified

Show 3 more filings ↓up to 3d gap

Massachusetts State AGbd_6ed832ad9bfdaa312025-02-05 · +1dVerified by operator
HHS OCRbd_3a92d791988f4c772025-02-03 · +1dVerified by operator
New Hampshire State AGbd_444cb76131c6fcf52025-02-07 · +3dVerified

Name: City of McKinney, Texas
norm: city of mckinney texas
Domain: mckinneytexas.org

Name: City of McKinney, Texas
norm: city of mckinney texas
Domain: mckinneytexas.org
Industry: Governmentllm

Discovered: Nov 14, 2024
Breach occurred: Oct 31, 2024
Undetected for: 14 daysoccurrence → discovery
Materiality determined: Feb 4, 2025
Notification sent: Feb 4, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Coordinated with the Federal Bureau of InvestigationCoordinated with the Department of Homeland SecurityCoordinated with the Texas Department of Information
Initial access: exploit_public_facing

During the incident: Engaged forensic consultants to investigate the root of the incident
Notified relevant law enforcement
Secured its systems
Coordinated with the Federal Bureau of Investigation
Coordinated with the Department of Homeland Security
Coordinated with the Texas Department of Information
Changes made: Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Scores services at no charge
Providing proactive fraud assistance
Continuously upgrading security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

HHS OCRFeb 3 · first

Vermont State AG+1d · this page

Massachusetts State AG+2d

New Hampshire State AG+4d

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://ago.vermont.gov/document/2025-02-04-city-mckinney-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 4, 2025
Raw hash: 8a9c35d27644398b8fe184624f957bb68ff4f414008da9c86e63add5746aad74

Linked disclosures

Ransomware claims (1)

Regulatory filings (7) · sorted by filing gap

Reporting entityCity of McKinney, Texas

Victim entityCity of McKinney, Texas

Incidentdiscovered Nov 14, 2024

Stated responseEngaged forensic consultants to investigate the root of the incident

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov