HackingHealthcareProfessional ServicesHealthcareCustomer Data InvolvedBusiness Associate (HIPAA)PHIIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

M&D Capital Premier Billing LLC

bd_8e15435d00c4677e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 8, 2023

Filed

Mar 21, 2024

To disclose

37 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

64%

Full breach record for M&D Capital Premier Billing LLC →

M&D Capital Premier Billing LLC notified patients of a data breach involving unauthorized access to systems containing demographic, healthcare, and financial information, including SSNs and diagnoses. Suspicious activity was identified on July 8, 2023, with access potentially beginning June 20, 2023. The company engaged forensic specialists, notified law enforcement, and implemented additional security safeguards. Affected individuals are offered credit monitoring and fraud assistance.

J jump to incidentP pin to compareR raw source

California clockDiscovered Jul 8, 2023 → Notified Mar 18, 2024254d ✗ CA 60-day late37 weeks discovery → filing

Incident timeline

undetected · 18 days

discovery → filing · 37 weeks / 257 days

Jun 20, 2023

Begins

Jul 8, 2023

Discovered

Mar 21, 2024

Filed

vs. sector median

+24 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Indiana State AGbd_712a2d5e997ca4c82024-03-21Verified
HHS OCRbd_7936ccdff7b6e8672024-03-21Verified
Vermont State AGbd_f646cccf3276d9b72024-03-21Verified
New Hampshire State AGbd_8611a7afade55a942024-03-26 · +5dVerified

Show 1 more filing ↓up to 7d gap

Massachusetts State AGbd_602bd1273ceb1d7c2024-03-28 · +7dVerified

Name: M&D Capital Premier Billing LLC
norm: m d capital premier billing

Name: M&D Capital Premier Billing LLC
norm: m d capital premier billing
Industry: HealthcarellmProfessional Servicesllm

Discovered: Jul 8, 2023
Breach occurred: Jun 20, 2023
Undetected for: 18 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 18, 2024
Affected individuals: Not disclosed
Data types: PHIIdentity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement

During the incident: Took steps to secure our network
Launched an investigation with the assistance of third-party forensic specialists
Notified law enforcement
Implemented additional administrative and technical safeguards
Worked with third-party subject matter specialists to further enhance the security of our systems
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing proactive fraud assistance
Changes made: Reviewed existing policies and procedures
Implemented additional administrative and technical safeguards
Worked with third-party subject matter specialists to further enhance the security of our systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(257 days from discovery to filing)
Compliance flags: CA 60-day late · 254d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Jul 8, 2023
→ Notified: Mar 18, 2024
254d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jul 8, 2023 → Notified: Mar 18, 2024	254d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Indiana State AGMar 21 · first

HHS OCRMar 21 · first

Vermont State AGMar 21 · first

California State AGMar 21 · first · this page

New Hampshire State AG+5d

Massachusetts State AG+7d

Pattern: first filing Mar 21 (IN), last Mar 28 (MA) — a 7-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://oag.ca.gov/ecrime/databreach/reports/sb24-582878
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 21, 2024
Raw hash: ca56b1e9b52628832f47e3de5038bdad9f6c9b869dd8cc22a41d47c8c46fa3e4

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityM&D Capital Premier Billing LLC

Victim entityM&D Capital Premier Billing LLC

Incidentdiscovered Jul 8, 2023

Stated responseTook steps to secure our network

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov