MalwareHealthcareHealthcareRansomwareData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDPHIHealth (basic)HighContained

Medical Management Resource Group, L.L.C.

bd_776968d28912f605 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 14, 2023

Filed

Feb 6, 2024

To disclose

12 weeks

Affected

4,482state residents only

Linked

10 filings

Confidence

70%

Full breach record for Medical Management Resource Group, L.L.C. →

Medical Management Resource Group, L.L.C. reported a ransomware cyberattack on November 14, 2023, affecting 4,482 Washington residents. The breach involved the exfiltration of personal and government-issued identification data. The company engaged TransUnion to provide two years of free credit monitoring and fraud assistance to affected individuals.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d12 weeks discovery → filing

Incident timeline

discovery → filing · 12 weeks / 84 days

Nov 14, 2023

Begins

Nov 14, 2023

Discovered

Feb 6, 2024

Filed

vs. sector median

1 wks faster

This filing is one of 10 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

HHS OCRbd_7b7b956dbf6e412d2024-02-06Verified by operator
Illinois State AGbd_666f9f3545487c7d2024-02-01 · +5dCandidate
Vermont State AGbd_91b60a8f11bae7ec2024-02-15 · +9dVerified
Indiana State AGbd_af0a4dfaa8d752532024-02-15 · +9dVerified

Show 5 more filings ↓up to 23d gap

Montana State AGbd_cf67a71df73c00872024-02-15 · +9dVerified
New Hampshire State AGbd_38d89641f60104632024-02-23 · +17dVerified
Oregon State AGbd_4e04a4942e26df332024-02-29 · +23dVerified
California State AGbd_9ade189a9c3aa1642024-02-29 · +23dVerified
Maine State AGbd_f877c41e8ddec9762024-02-29 · +23dVerified

Name: Medical Management Resource Group, L.L.C.
norm: medical management resource

Name: Medical Management Resource Group, L.L.C.
norm: medical management resource
Industry: Healthcarellm

Discovered: Nov 14, 2023
Breach occurred: Nov 14, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 4,482state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 0dexposure 0d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Filed breach notification with Washington Attorney General
Initial access: valid_credentials

During the incident: Arranged with TransUnion to provide Single Bureau Credit Monitoring services for two years
Provided proactive fraud assistance through Cyberscout
Sent notification letters to affected individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(84 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 10 states

View merged incident ↗

Illinois State AGFeb 1 · first

HHS OCR+5d

Washington State AG+5d · this page

Vermont State AG+14d

Indiana State AG+14d

Montana State AG+14d

New Hampshire State AG+22d

Oregon State AG+28d

California State AG+28d

Maine State AG+28d

Pattern: first filing Feb 1 (IL), last Feb 29 (ME) — a 28-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA27847.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 6, 2024
Raw hash: 83059ae15cd3256e0eab58af9835f3c4c7c2fcfdbeada35bf6389387cb0a8586

Linked disclosures

Regulatory filings (9) · sorted by filing gap

Reporting entityMedical Management Resource Group, L.L.C.

Victim entityMedical Management Resource Group, L.L.C.

Incidentdiscovered Nov 14, 2023

Stated responseArranged with TransUnion to provide Single Bureau Credit Monitoring services for two years

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com