HackingHealthcareProfessional ServicesHealthcareSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Yale New Haven Health Services Corporation

bd_416c7062bea04db4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 4, 2023

Filed

Aug 9, 2024

To disclose

36 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

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

Yale New Haven Health (YNHHS) notified consumers of a data breach involving its vendor, Tobin, Carberry, O'Malley, Riley & Selinger, P.C. (TCORS). An unauthorized third party accessed TCORS's network between November 10 and 30, 2023, copying files containing patient PII and PHI, including SSNs, DOBs, and medical history. YNHHS is offering one year of identity theft protection. The incident affected at least 689 Rhode Island residents.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday36 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 · 24 days

discovery → filing · 36 weeks / 249 days

Nov 10, 2023

Begins

Dec 4, 2023

Discovered

Aug 9, 2024

Filed

vs. sector median

+25 wks slower

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

New Hampshire State AGbd_14bf0242d59053752024-08-19 · +10dVerified
New Hampshire State AGbd_f9c3c7420bcc21412024-12-26 · +139dVerified

Name: Tobin, Carberry, O'Malley, Riley & Selinger, P.C.
norm: tobin carberry o malley riley selinger
Industry: professional_services

Name: Yale New Haven Health Services Corporation
norm: yale new haven health
Industry: healthcare
Industry: HealthcarellmProfessional Servicesllm

Discovered: Dec 4, 2023
Breach occurred: Nov 10, 2023 – Nov 30, 2023
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 19, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Conducted forensic investigation with third-party specialists
Provided notice of the security incident to YNHHS
Offering complimentary identity theft protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(249 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 · 3 filings · 2 states

View merged incident ↗

Vermont State AGAug 9 · first · this page

New Hampshire State AG+10d

New Hampshire State AG+139d

Pattern: first filing Aug 9 (VT), last Dec 26 (NH) — a 139-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://ago.vermont.gov/document/2024-08-09-tobin-carberry-omalley-riley-selinger-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 9, 2024
Raw hash: 0a901412883964de449de0760e75c0d69f10d97b50daa6c10e2047e6bb2bf088

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityTobin, Carberry, O'Malley, Riley & Selinger, P.C.

Victim entityYale New Haven Health Services Corporation

Incidentdiscovered Dec 4, 2023

Stated responseConducted forensic investigation with third-party specialists

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov