HackingHealthcareTechnologyHealthcareStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDHealth (basic)MediumResolved

Patterson Dental Supply (Massachusetts General Hospital)

bd_74ab43472c4e9d10 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 8, 2016

Filed

Jun 29, 2016

To disclose

20 weeks

Affected

1state residents only

Confidence

66%

Full breach record for Patterson Dental Supply (Massachusetts General Hospital) →

Massachusetts General Hospital notified patients of a breach involving third-party vendor Patterson Dental Supply. An unauthorized individual accessed electronic files containing patient names, DOBs, SSNs, and dental records. Notification was delayed at law enforcement's request until May 26, 2016. Patients were offered one year of credit monitoring.

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Incident timeline

discovery → filing · 20 weeks / 142 days

Feb 8, 2016

Discovered

Jun 29, 2016

Filed

vs. sector median

+8 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Massachusetts General Hospital
norm: massachusetts general hospital
Domain: massgeneral.org

Name: Patterson Dental Supply (Massachusetts General Hospital)
norm: patterson dental supply massachusetts general hospital
Industry: HealthcarellmTechnologyllm

Discovered: Feb 8, 2016
Materiality determined: —
Notification sent: May 26, 2016
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: PDSI reported the incident to law enforcementlaw enforcement investigators required that any notification to potentially affected individuals and any public announcement of the incident should be withheld while they were conducting their investigation
Initial access: valid_credentials

During the incident: PDSI reported the incident to law enforcement
Law enforcement investigators required that any notification to potentially affected individuals and any public announcement of the incident should be withheld while they were conducting their investigation
Offering you a complimentary one-year membership to Experian’s® ProtectMyID® Alert
Changes made: PDSI took steps to enhance the security of its systems that maintain dental practice data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(142 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/Patterson-Dental-Supply-MGH.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 29, 2016
Raw hash: d781d311a25fa67f117dae3028c39e662beb6f17a5ed4902c298f8bceeb7b96e

Reporting entityMassachusetts General Hospital

Victim entityPatterson Dental Supply (Massachusetts General Hospital)

Incidentdiscovered Feb 8, 2016

Stated responsePDSI reported the incident to law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov