AccidentalHealthcareHealthcareMisconfigurationCustomer Data InvolvedPIIIdentity (basic)Government IDMediumResolved

Yale New Haven Health Services Corporation

bd_2575f40d53daa500 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 17, 2019

Filed

Nov 8, 2019

To disclose

16 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Yale New Haven Health Services Corporation →6 incidents on file

Yale New Haven Health notified Montana residents that employee data, including names and Social Security numbers, was potentially accessible via the intranet due to a misconfigured password setting from July 3-17, 2019. The issue was corrected, data removed, and credit monitoring offered.

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Incident timeline

undetected · 14 days

discovery → filing · 16 weeks / 114 days

Jul 3, 2019

Begins

Jul 17, 2019

Discovered

Nov 8, 2019

Filed

vs. sector median

+7 wks slower

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_1942082252d6a9362019-11-08Verified

Name: Yale New Haven Health Services Corporation
norm: yale new haven health

Name: Yale New Haven Health Services Corporation
norm: yale new haven health
Industry: Healthcarellm

Discovered: Jul 17, 2019
Breach occurred: Jul 3, 2019 – Jul 17, 2019
Undetected for: 14 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Misconfiguration
MITRE ATT&CK: T1566 Phishing

During the incident: The password setting was immediately corrected
The employee data was removed from the intranet within hours of our becoming aware of this issue
Began an investigation
Offering a free two-year membership of Experian’s® IdentityWorks Credit 3B program
Changes made: Implemented stronger safeguards through enhanced processes related to software and security settings
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(114 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGNov 8 · first

Montana State AGNov 8 · first · this page

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/General-Notice-23.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 8, 2019
Raw hash: d90416b30168629b4092d066eda258154f951484298b096823d5bf467bc3483d

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityYale New Haven Health Services Corporation

Victim entityYale New Haven Health Services Corporation

Incidentdiscovered Jul 17, 2019

Stated responseThe password setting was immediately corrected

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov