HackingHealthcareProfessional ServicesHealthcareStolen CredentialsCapture Stored DataSupply Chain (3P Vendor)Business Associate (HIPAA)Data ExfiltratedCustomer Data InvolvedDownstream VictimsIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

Yale New Haven Health Services Corporation

bd_14bf0242d5905375 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 4, 2023

Filed

Aug 19, 2024

To disclose

37 weeks

Affected

5scope not determined

Linked

3 filings

Confidence

66%

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

Supplemental notice regarding a cybersecurity incident at vendor Tobin, Carberry, O'Malley, Riley & Selinger, P.C. (TCORS), a business associate of Yale New Haven Health (YNHH). Unauthorized access occurred Nov 10-30, 2023. TCORS notified YNHH on Dec 4, 2023. YNHH notified 5 impacted individuals on July 19, 2024. Data included PII, SSN, PHI, and bank info. Third-party forensics engaged. Identity theft protection offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 24 days

discovery → filing · 37 weeks / 259 days

Nov 10, 2023

Begins

Dec 4, 2023

Discovered

Aug 19, 2024

Filed

vs. sector median

+26 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

Vermont State AGbd_416c7062bea04db42024-08-09 · +10dCandidate
New Hampshire State AGbd_f9c3c7420bcc21412024-12-26 · +129dVerified

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

Name: Yale New Haven Health Services Corporation
norm: yale new haven health
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: 5scope not determined
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Department of Justice
Initial access: valid_credentials

During the incident: Engaged third-party forensics specialists to conduct a forensic investigation
Provided notice of the security incident to Yale New Haven Health
Provided a list of individuals whose information may have been stored in the copied files
Offered a complimentary membership of identity theft protection services through IDX, a ZeroFox Company
Changes made: Offered complimentary credit monitoring and identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(259 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 · 2 states

View merged incident ↗

Vermont State AGAug 9 · first

New Hampshire State AG+10d · this page

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://mm.nh.gov/files/uploads/doj/remote-docs/tobin-carberry-omalley-riley-selinger-yale-new-haven-health-20240819.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 19, 2024
Raw hash: f65e3f32202ca2ebda5feaea830ffd4987729bf5992c48a665aa259b65de31d1

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 responseEngaged third-party forensics specialists to conduct a forensic investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov