UnknownOtherFinancial accountHealth (basic)Government IDMedium

MCBS, LLC

bd_bf98d27264189061 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Sep 22, 2025

Filed

Jul 1, 2026

To disclose

—

Affected

Withheld by the regulator

Linked

7 filings

Confidence

95%

Full breach record for MCBS, LLC →2 incidents on file

MCBS, LLC filed a data-breach notice with the Illinois Attorney General in July 2026 (case 26-07-1347). The register records the breach as discovered on September 22, 2025. Personal information types reported: drivers license, financial account number, medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.

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Leak gap clock✗ Leak >180d

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

Sep 22, 2025

Discovered

Jul 1, 2026

Filed

This filing is one of 7 about the same incident.View merged incident

A leak claim by pear about this victim predates this filing by 279 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitepearbd_fbca2f8d470dced22025-09-25 · +279dVerified by operator

Regulatory filings (5) · sorted by filing gap

South Carolina State AGbd_bf3c11705b24a8a62026-07-01Verified
Texas State AGbd_51bebdfc54a78a9b2026-06-30 · +1dVerified
New Hampshire State AGbd_8f3ea50c0a24e40c2026-06-29 · +2dVerified by operator
California State AGbd_32aaf81428502adc2026-06-26 · +5dVerified by operator

Show 1 more filing ↓up to 5d gap

HHS OCRbd_8ed31a4b32add53a2026-06-26 · +5dVerified by operator

Name: MCBS, LLC
norm: mcbs
Domain: mcbs.com

Name: MCBS, LLC
norm: mcbs
Domain: mcbs.com
Industry: Otherllm

Discovered: Sep 22, 2025
Materiality determined: —
Notification sent: —
Affected individuals: Withheld by the regulator
Data types: Financial accountHealth (basic)Government ID
Data elements: Driver's licence numberFinancial account numberMedical informationSocial Security number
Attack vector: Unknown

Compliance flags: Leak >180d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

California State AGJun 26 · first

HHS OCRJun 26 · first

New Hampshire State AG+3d

Texas State AG+4d

South Carolina State AG+5d

Illinois State AG+5d · this page

Pattern: first filing Jun 26 (CA), last Jul 1 (IL) — a 5-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://databreachnoticetoattorneygeneral.illinoisattorneygeneral.gov/
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 1, 2026
Raw hash: aba90961b64bb5409d946e4c8618de01d84787c430433158887325469b364dd6

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entityMCBS, LLC

Victim entityMCBS, LLC

Incidentdiscovered Sep 22, 2025

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancedatabreachnoticetoattorneygeneral.illinoisattorneygeneral.gov