HackingHealthcareHealthcareStolen CredentialsTargetedIdentity (basic)Government IDPHIHealth (basic)MediumContained

Gateway Diagnostic Imaging

bd_a3fd88300f0cc454 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 24, 2021

Filed

Sep 2, 2022

To disclose

36 weeks

Affected

40state residents only

Linked

2 filings

Confidence

64%

Full breach record for Gateway Diagnostic Imaging →

Gateway Diagnostic Imaging notified Montana patients of a security incident where unauthorized access occurred between Dec 17-24, 2021. Patient PII and PHI (names, SSNs, DOBs, medical records) were accessed. The company engaged forensic investigators and notified law enforcement. Affected individuals received one year of Equifax Credit Watch Gold.

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Incident timeline

undetected · 7 days

discovery → filing · 36 weeks / 252 days

Dec 17, 2021

Begins

Dec 24, 2021

Discovered

Sep 2, 2022

Filed

vs. sector median

+25 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_173734bc24e162632022-09-02Verified

Name: Gateway Diagnostic Imaging
norm: gateway diagnostic imaging

Name: Gateway Diagnostic Imaging
norm: gateway diagnostic imaging
Industry: Healthcarellm

Discovered: Dec 24, 2021
Breach occurred: Dec 17, 2021 – Dec 24, 2021
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 2, 2022
Affected individuals: 40state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Initiated our incident response process
Notified law enforcement
Began an investigation with the assistance of a forensic firm
Changes made: Implementing additional safeguards and enhancements to our information security, systems, and monitoring capabilities
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(252 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 AGSep 2 · first

Montana State AGSep 2 · 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/Consumer-Notification-Letter-539.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2022
Raw hash: e1dff88f9014f6d1cb090c997ca0bd255170bde044e91f830501d88e06bfade6

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGateway Diagnostic Imaging

Victim entityGateway Diagnostic Imaging

Incidentdiscovered Dec 24, 2021

Stated responseInitiated our incident response process

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov